Mediterranean climate#very Warm-summer Mediterranean climate

{{Short description|Type of climate}}

{{About||the influence of Mediterranean climates on viticulture|Climate categories in viticulture#Mediterranean climates{{!}}Mediterranean climate (wine)|the climate specifically of the Mediterranean Sea|Mediterranean Sea#Climate{{!}}Climate of the Mediterranean Sea}}

{{Original research|date=May 2022}}

[[File:Cs climate.png|upright=1.5|thumb|Regions with Mediterranean climates

{{legend|#FFFF00|Hot-summer Mediterranean climate (Csa)}}

{{legend|#C6C700|Warm-summer Mediterranean climate (Csb)}}]]

A Mediterranean climate ({{IPAc-en|ˌ|m|ɛ|d|ɪ|t|ə|ˈ|r|eɪ|n|i|ən}} {{respell|MED|ih|tə|RAY|nee|ən}}), also called a dry summer climate, described by Köppen and Trewartha as Cs, is a temperate climate type that occurs in the lower mid-latitudes (normally 30 to 44 north and south latitude). Such climates typically have dry summers and wet winters, with summer conditions being hot and winter conditions typically being mild. These weather conditions are typically experienced in the majority of Mediterranean-climate regions and countries, but remain highly dependent on proximity to the ocean, altitude and geographical location.

The dry summer climate is found throughout the warmer middle latitudes, affecting almost exclusively the western portions of continents in relative proximity to the coast. The climate type's name is in reference to the coastal regions of the Mediterranean Sea, which mostly share this type of climate, but it can also be found in the Atlantic portions of Iberia and Northwest Africa, the Pacific portions of the United States and Chile, extreme west areas of Argentina, the southwest tip of South Africa, parts of Southwest and South Australia, and parts of Central Asia. They tend to be found in proximity (both poleward and near the coast) of desert and semi-arid climates, and equatorward of oceanic climates.

Mediterranean climate zones are typically located along the western coasts of landmasses, between roughly 30 and 45 degrees north or south of the equator. The main cause of Mediterranean, or dry summer, climate is the subtropical ridge, which extends towards the pole of the hemisphere in question during the summer and migrates towards the equator during the winter. This is due to the seasonal poleward-equatorward variations of temperatures.

The resulting vegetation of Mediterranean climates are the garrigue or maquis in the European Mediterranean Basin, the chaparral in California, the fynbos in South Africa, the mallee in Australia, and the matorral in Chile. Areas with this climate are also where the so-called "Mediterranean trinity" of major agricultural crops have traditionally been successfully grown (wheat, grapes and olives). As a result, these regions are notable for their high-quality wines, grapeseed/olive oils, and bread products.

Köppen climate classification

File:Portugal Köppen.svg) and hot (Csa) summers.]]

Under the Köppen climate classification, "hot dry-summer" climates (classified as Csa) and "cool dry-summer" climates (classified as Csb) are often referred to as just "Mediterranean". Under the Köppen climate system, the first letter indicates the climate group (in this case temperate climates). Temperate climates or "C" zones average temperature above {{convert|0|C|F}} (or {{convert|-3|C|F}}), but below {{convert|18|C|F}}, in their coolest months. The second letter indicates the precipitation pattern ("s" represents dry summers). Köppen has defined a dry summer month as a month with less than {{convert|30|mm|abbr=on}} of precipitation and as a month within the high-sun months of April to September, in the case of the Northern Hemisphere and October to March, in the case of the Southern Hemisphere, and it also must contain exactly or less than one-third that of the wettest winter month. Some, however, use a {{convert|40|mm|abbr=on}} level.{{cite journal |url=http://www.schweizerbart.de/resources/downloads/paper_free/55034.pdf |first1=Markus |last1=Kottek |first2=Jürgen |last2=Grieser |first3=Christoph |last3=Beck |first4=Bruno |last4=Rudolf |first5=Franz |last5=Rube |title=World Map of the Köppen-Geiger climate classification updated |journal=Meteorologische Zeitschrift |date=June 2006 |volume=15 |issue=3 |pages=259–263 |access-date=27 February 2011 |doi=10.1127/0941-2948/2006/0130 |bibcode=2006MetZe..15..259K |archive-url=https://web.archive.org/web/20190412021016/http://www.schweizerbart.de/resources/downloads/paper_free/55034.pdf |archive-date=12 April 2019 |url-status=live }}{{cite journal |url=http://www.hydrol-earth-syst-sci-discuss.net/4/439/2007/hessd-4-439-2007.pdf |first1=M. C. |last1=Peel |first2=B. L. |last2=Finlayson |first3=T. A. |last3=McMahon |title=Updated world map of the Köppen-Geiger climate classification |journal=Hydrology and Earth System Sciences |year=2007 |volume=4 |pages=439–473 |access-date=27 February 2011 |doi=10.5194/hessd-4-439-2007 |issue=2 |archive-url=https://web.archive.org/web/20190828045342/https://www.hydrol-earth-syst-sci-discuss.net/4/439/2007/hessd-4-439-2007.pdf |archive-date=28 August 2019 |url-status=live |doi-access=free }} The third letter indicates the degree of summer heat: "a" represents an average temperature in the warmest month above {{convert|22|C|F}}, while "b" indicates the average temperature in the warmest month below {{convert|22|C}}. There is a "c" with 3 or less months' average temperature above {{convert|10|C}}, but this climate is rare and is very isolated.

Under the Köppen classification, dry-summer climates (Csa, Csb) usually occur on the western sides of continents. Csb zones in the Köppen system include areas normally not associated with Mediterranean climates but with Oceanic climates, such as much of the Pacific Northwest, much of southern Chile, parts of west-central Argentina, and parts of New Zealand.{{cite journal |url=http://www.hydrol-earth-syst-sci.net/11/1633/2007/hess-11-1633-2007.html |first1=M. C. |last1=Peel |first2=B. L. |last2=Finlayson |first3=T. A. |last3=McMahon |title=Updated world map of the Köppen-Geiger climate classification |journal=Hydrology and Earth System Sciences |year=2007 |volume=11 |issue=5 |pages=1633–1644 |access-date=27 February 2011 |doi=10.5194/hess-11-1633-2007 |bibcode=2007HESS...11.1633P |doi-access=free |archive-url=https://web.archive.org/web/20170210144308/http://www.hydrol-earth-syst-sci.net/11/1633/2007/hess-11-1633-2007.html |archive-date=10 February 2017 |url-status=live }} Additional highland areas in the subtropics also meet Cs requirements, though they, too, are not normally associated with Mediterranean climates. The same goes for a number of oceanic islands such as Madeira, the Juan Fernández Islands, the western part of the Canary Islands, and the eastern part of the Azores.

Under Trewartha's modified Köppen climate classification, the two major requirements for a Cs climate are revised. Under Trewartha's system, at least eight months must have average temperatures of {{convert|10|C}} or higher (subtropical), and the average annual precipitation must not exceed {{convert|900|mm|in|abbr=on}}, as well as satisfying Köppen's precipitation requirements.{{citation needed|date=April 2024}}

Precipitation

{{More citations needed|Section|date=August 2023}}

{{confusing|Section|date=April 2025}}

{{rquote|right|[Chile] has four months of winter, no more, and in them, except when there is a quarter moon, when it rains one or two days, all the other days have such a beautiful sunshine that is not necessary to resort to fire. The summer is so temperate, with delicious airs, that man can go all day under the sun.|Pedro de Valdivia to Charles V, Holy Roman Emperor}}

Poleward extension and expansion of the subtropical anticyclone over the oceans bring subsiding air to the region in summer, with clear skies and high temperatures. When the anticyclone moves Equator-ward in winter, it is replaced by traveling, frontal cyclones with their attendant precipitation.{{Cite web |url=https://www.britannica.com/science/Mediterranean-climate |title=Medittranean climate Definition, Region, Map, & Facts |access-date=2023-08-01 |work=Encyclopædia Britannica}}

During summer, regions of the Mediterranean climate are strongly influenced by the subtropical ridge which keeps atmospheric conditions very dry with minimal cloud coverage. In some areas, such as coastal California, the cold current has a stabilizing effect on the surrounding air, further reducing the chances for rain, but often causing thick layers of marine fog that usually evaporates by mid-day. Similar to desert climates, in many Mediterranean climates there is a strong diurnal character to daily temperatures in the warm summer months due to strong solar heating during the day from sunlight and rapid cooling at night.

In winter, the subtropical ridge migrates towards the equator and leaves the area, making rainfall much more likely. As a result, areas with this climate receive almost all of their precipitation during their winter and spring seasons, and may go anywhere from four to six months during the summer and early fall without having any significant precipitation. In the lower latitudes, precipitation typically decreases during both the winter and summer months. Toward the polar latitudes, total moisture levels generally increase; for example, the Mediterranean climate in Southern Europe tends to experience more rainfall. Rainfall in Southern Europe is also more evenly distributed throughout the year, while in places such as Southern California, the summer is nearly or completely dry. In areas where steppe climates are found, the overall precipitation pattern may still resemble that of Mediterranean climates, though with drier conditions.

Irregularity of the rainfall, which can vary considerably from year to year, accentuates the droughts of the Mediterranean climate. Rain does not fall evenly, nor does the rain arrive at the same time or within the same intervals. In Gibraltar, for instance, rain starts falling nearly half a season earlier than at the Dead Sea. In the Holy Land no rain at all falls in summer but early rains may come in autumn.{{Cite web |url=https://www.mediterraneangardensociety.org/climate.html |title=What is a medittranean climate? |access-date=2023-08-01 |publisher=Mediterranean Garden Society |last=Gildemeister |first=Heidi}}

Temperature

{{more citations needed section|date=May 2024}}

File:Blue_Lagoon_-_2014.10_-_panoramio.jpg, Turkey]]

The majority of the regions with Mediterranean climates have relatively mild winters and very warm summers. However, winter and summer temperatures can vary greatly between different regions with a Mediterranean climate. For instance, in the case of winters, Funchal experiences mild to warm temperatures in the winter, with frost and snowfall almost unknown,{{cite web |title=World Weather Information Service – Funchal(monthly averages for the 30-year period 1961-1990) |url=https://worldweather.wmo.int/en/city.html?cityId=5 |website=worldweather.wmo.int |publisher=WMO |access-date=1 May 2024}} whereas Tashkent has cold winters with annual frosts and snowfall;{{cite web |title=Климатические таблицы. Данные для Ташкента |url=http://www.pogodaiklimat.ru/climate.php?id=38457 |website=Pogodaikclimat |publisher=Weather and Climate |access-date=1 May 2024 |language=Russian}} or, to consider summer, Seville experiences rather high temperatures in that season.{{cite web |title=Valores climatológicos normales. Sevilla Aeropuerto |url=https://www.aemet.es/es/serviciosclimaticos/datosclimatologicos/valoresclimatologicos?l=5783&k=and |publisher=AEMET |access-date=1 May 2024}} In contrast, San Francisco has cool summers with daily highs around {{convert|21|C|F}}{{cite web |title=World Weather Information Service – San Francisco (monthly averages for the 30-year period 1981-2010) |url=https://worldweather.wmo.int/en/city.html?cityId=272 |website=worldweather.wmo.int |publisher=WMO |access-date=1 May 2024}} due to the continuous upwelling of cold subsurface waters along the coast.

Because most regions with a Mediterranean climate are near large bodies of water, temperatures are generally moderate, with a comparatively small range of temperatures between the winter low and summer high unlike (the relatively rare) dry-summer humid continental climates (although the daily diurnal range of temperature during the summer is large due to dry and clear conditions, except along the immediate coastlines). Temperatures during winter only occasionally fall below the freezing point and snow is generally seldom seen. Summer temperatures can be cool to very hot, depending on the distance from a large body of water, elevation, and latitude, among other factors. Strong winds from inland desert regions can sometimes boost summer temperatures up, quickly increasing the risk of wildfires. Notable exceptions to the usual proximity from bodies of water, thus featuring extremely high summer temperatures and cooler winters, include south-eastern Turkey and northern Iraq (Urfa, Erbil), surrounded by hot deserts to the south and mountains to the north. Those places routinely experience summer daily means of over {{convert|30|C|F}} and daily highs above {{convert|40|C|F}}, while receiving enough rainfall in winter not to fall into arid or semi-arid classifications.{{cite web |title=İllerimize Ait Genel İstatistik Verileri: Sanliurfa |url=https://www.mgm.gov.tr/veridegerlendirme/il-ve-ilceler-istatistik.aspx?k=A&m=SANLIURFA |website=mgm.gov |publisher=Meteoroloji Genel Müdürlüğü |access-date=1 May 2024 |language=Turkish}}

As in every climatologic domain, the highland locations of the Mediterranean domain can present cooler temperatures in the summer and winter than the lowland areas, temperatures which can sometimes prohibit the growth of typical cold-sensitive Mediterranean plants. Some Spanish authors opt to use the term 'continental Mediterranean climate' ({{lang|es|Clima Mediterráneo Continentalizado}}) for some regions with lower temperatures in winter than the coastal areas,{{cite web |title=España a Través de los Mapas |url=http://www.ign.es/espmap/graficos_clima_bach/Clima_Graf_05.htm |url-status=live |archive-url=https://web.archive.org/web/20100826022801/http://www.ign.es/espmap/graficos_clima_bach/Clima_Graf_05.htm |archive-date=26 August 2010 |access-date=6 October 2010 |website=ign.es}} but Köppen's Cs zones show no distinction as long as winter temperature means stay above freezing.

Additionally, the temperature and rainfall pattern for a Csa or even a Csb climate can exist as a microclimate in some high-altitude locations adjacent to a rare tropical As (tropical savanna climate with dry summers, typically in a rainshadow region, as in Hawaii).

These have a favourable climate, with mild wet winters and fairly warm, dry summers.

Mediterranean biome

File:Ionian sea islands, pic8.JPG, Greece]]

File:Makarska riviera.jpg in Dalmatia, Croatia]]

File:Tossa de Mar View.jpg, Catalonia, Spain]]

The Mediterranean forests, woodlands, and scrub biome is closely associated with Mediterranean climate zones, as are unique freshwater communities, though vegetation native to the Mediterranean climate zone can also be found in the approximate nearby climate zones, which usually tend to be the humid subtropical, oceanic and/or semi-arid zones, depending on the region and location. Particularly distinctive of the climate are sclerophyll shrublands, called maquis in the Mediterranean Basin, chaparral in California, matorral in Chile, fynbos in South Africa, and mallee and kwongan shrublands in Australia.{{citation needed|date=April 2024}}

Mediterranean vegetation shows a number of adaptations to drought, grazing, and frequent fire regimes. The small sclerophyllous leaves that characterize many of the perennial shrubs of this biome, help conserve water and prevent nutrient loss. The soils generally are of low fertility, and many plants have mutualistic relationships with nitrogen-fixing bacteria.{{citation needed|date=April 2024}}

Aquatic communities in Mediterranean climate regions are adapted to a yearly cycle in which abiotic (environmental) controls of stream populations and community structure dominate during floods, biotic components (e.g. competition and predation) controls become increasingly important as the flood discharge declines, and environmental controls regain dominance as environmental conditions become very harsh (i.e. hot and dry); as a result, these communities are well suited to recover from droughts, floods, and fires.{{cite journal |author=Gasith, A. and V.H. Resh|title=Streams in Mediterranean Climate Regions: Abiotic Influences and Biotic Responses to Predictable Seasonal Events |journal=Annu. Rev. Ecol. Syst. |year=1999 |volume=30 |pages=51–81|doi=10.1146/annurev.ecolsys.30.1.51}} Aquatic organisms in these regions show distinct long-term patterns in their structure and function,{{cite journal | last =Resh | first =V.H. |author2=L.A. Bêche |author3=J.E. Lawrence |author4=R.D. Mazor |author5=E.P. McElravy |author6=A.H. Purcell |author7=S.M. Carlson | title = Long-term Population and Community Patterns of Benthic Macroinvertebrates and Fishes in Northern California Mediterranean-climate Streams | journal = Journal of the North American Benthological Society | volume =719 | pages =93–118 | year = 2013| doi= 10.1007/s10750-012-1373-9 | s2cid =186919 }} and are also highly sensitive to the recent effects of climate change.{{cite journal|last=Lawrence |first=J.E. |author2=K.B. Lunde |author3=R.D. Mazor |author4=L.A. Bêche |author5=E.P. McElravy |author6=V.H. Resh |title=Long-Term Macroinvertebrate Responses to Climate Change: Implications for Biological Assessment in Mediterranean-Climate Streams |journal=Journal of the North American Benthological Society |volume=29 |issue=4 |pages=1424–1440 |year=2010 |doi=10.1899/09-178.1 |s2cid=84679634 }}{{cite journal | last =Filipe | first =A.F. |author2=J.E. Lawrence |author3=N. Bonada | title = Vulnerability of Biota in Mediterranean Streams to Climate Change: A Synthesis of Ecological Responses and Conservation Challenges | journal =Hydrobiologia | volume =719 | pages =331–351 | date =November 2013| doi= 10.1007/s10750-012-1244-4 | hdl =2445/48186 | s2cid =17658477 | hdl-access =free }}

=Natural vegetation=

The native vegetation of Mediterranean climate lands must be adapted to survive long, hot summer droughts in summer and prolonged wet periods in winter. Mediterranean vegetation examples include the following:{{cite book|last=Dallman|first=Peter|title=Plant Life in the World's Mediterranean Climates|year=1998|publisher=University of California Press|location=Berkeley, CA|isbn=978-0-520-20809-4|url=http://www.ucpress.edu/book.php?isbn=9780520208094|access-date=26 September 2012|archive-url=https://web.archive.org/web/20100528232703/http://www.ucpress.edu/book.php?isbn=9780520208094|archive-date=28 May 2010|url-status=dead}}

Many native vegetations in Mediterranean climate area valleys have been cleared for agriculture and farming. In places such as the Sacramento Valley and Oxnard Plain in California, draining marshes and estuaries combined with supplemental irrigation has led to a century of intensive agriculture. Much of the Overberg in the southern Cape of South Africa, was once covered with renosterveld, but has likewise been largely converted to agriculture, mainly for wheat. In hillside and mountainous areas, away from the urban sprawls, ecosystems and habitats of native vegetation are more sustained and undisturbed.{{citation needed|date=April 2024}}

The fynbos vegetation in the South-western Cape in South Africa is famed for its high floral diversity, and includes such plant types as members of the Restionaceae, Ericas (Heaths) and Proteas. Representatives of the Proteaceae also grow in Australia, such as Banksias. The palette of California native plants is also renowned for its species and cultivar diversity.{{citation needed|date=April 2024}}

{{anchor|Hot-summer_mediterranean_climate}}Hot-summer Mediterranean climate

File:Koppen-Geiger Map Csa present.svg

This subtype of the Mediterranean climate (Csa) is the most common form of the Mediterranean climate, therefore it is also known as a "typical Mediterranean climate". As stated earlier, regions with this form of a Mediterranean climate experience average monthly temperatures in excess of {{convert|22.0|C|F}} during its warmest month and an average in the coldest month between {{convert|18|and|−3|C|F}} or, in some applications, between {{convert|18|and|0|C|F}}. Regions with this form of the Mediterranean climate typically experience hot, sometimes very hot and dry summers. Winters can be mild, cool or chilly, and some cities in this region receive somewhat regular snowfall (e.g. Kermanshah),{{cite web |title=No. of days with snow or sleet in Kermanshah by Month 1951–2010 |url=http://www.chaharmahalmet.ir/stat/archive/iran/keh/KERMANSH/32.asp |url-status=dead |archive-url=https://web.archive.org/web/20150414131810/http://www.chaharmahalmet.ir/stat/archive/iran/keh/KERMANSH/32.asp |archive-date=April 14, 2015 |access-date=April 7, 2015 |publisher=Iran Meteorological Organization |df=mdy-all}} while others do not receive any (e.g. Casablanca).

Csa climates are mainly found around the Mediterranean Sea, southern Australia, southwestern South Africa, sections of Central Asia, northern sections of Iran and Iraq, the interior of northern California west of the Sierra Nevada, along the Wasatch Front in Utah, and inland areas of southern Oregon west of the Cascade Mountains. Southern California's coasts also experience hot summers due to the shielding effect of the Channel Islands. However, unshielded areas of that coastline can have warm-summer Mediterranean climates with hot-summer areas just a few kilometres inland.

{{climate chart

| Los Angeles, United States

| 9.4 | 20.0 | 84

| 10.0 | 20.0 | 92

| 11.3 | 21.1 | 57

| 12.7 | 22.4 | 18

| 14.5 | 23.2 | 8.1

| 16.3 | 25.1 | 2.3

| 18.2 | 27.8 | 0.51

| 18.6 | 28.9 | 0.00

| 17.9 | 28.3 | 3.3

| 15.5 | 25.9 | 15

| 11.7 | 22.7 | 20

| 9.0 | 19.7 | 63

|float = left

|clear = none

|source = NOAA{{cite web

| url = https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&startDate=0001-01-01&endDate=9996-12-31&stations=USW00093134&format=pdf

| title = Summary of Monthly Normals 1991-2020

| publisher = NOAA

| access-date = April 2, 2025}}

}}

{{climate chart

| Marseille, France

| 3.6 | 11.8 | 47.1

| 3.7 | 12.8 | 29.8

| 6.5 | 16.4 | 29.5

| 9.4 | 19.3 | 51.6

| 13.3 | 23.5 | 37.7

| 17.2 | 27.9 | 27.9

| 19.7 | 30.7 | 10.8

| 19.4 | 30.5 | 25.8

| 15.9 | 25.9 | 82.0

| 12.6 | 21.3 | 73.3

| 7.7 | 15.7 | 75.9

| 4.4 | 12.4 | 40.9

|float = left

|clear = none

|source = Metéo France{{cite web

| url = https://donneespubliques.meteofrance.fr/FichesClim/FICHECLIM_13054001.pdf

| title = Normal Values for Marseille

| publisher = Metéo France

| access-date = April 26, 2024}}

}}

{{climate chart

| Alexandroupolis, Greece

| 1.4 | 8.6 | 63.3

| 1.8 | 9.8 | 56.3

| 3.7 | 12.3 | 48.6

| 7.2 | 17.3 | 35.1

| 11.5 | 22.6 | 36.2

| 15.5 | 27.4 | 28.3

| 18.0 | 30.5 | 19.8

| 18.0 | 30.7 | 13.1

| 14.4 | 26.2 | 27.9

| 10.5 | 20.4 | 51.5

| 6.7 | 14.9 | 82.7

| 3.7 | 10.6 | 82.7

|float = left

|clear = none

|source= HNMS{{cite web

| url = http://www.hnms.gr/emy/en/climatology/climatology_city?perifereia=East%20Macedonia%20and%20Thrace&poli=Alexandroupolis

| title = Climatic Data for selected stations in Greece

| publisher = Hellenic National Meteorological Service

| access-date = August 30, 2022}}}}

{{climate chart

| Perth, Australia

| 17.8 | 30.8 | 9.5

| 18.0 | 31.3 | 12.8

| 16.4 | 29.5 | 19.4

| 13.5 | 25.5 | 44.2

| 10.6 | 22.4 | 117.7

| 8.5 | 19.3 | 176.7

| 7.8 | 18.4 | 169.9

| 8.0 | 18.8 | 134.1

| 9.5 | 20.1 | 80.9

| 11.2 | 22.8 | 52.4

| 14.1 | 26.2 | 22.2

| 16.1 | 28.7 | 12.8

|float=left

|clear=none

|source=BoM{{cite web |url=http://www.bom.gov.au/climate/averages/tables/cw_009034.shtml |title=Perth Monthly climate statistics |publisher=Australia Bureau of Meteorology |access-date=2 August 2010 |archive-url=https://web.archive.org/web/20110310214516/http://www.bom.gov.au/climate/averages/tables/cw_009034.shtml |archive-date=10 March 2011 |url-status=live }}}}

{{clear}}

{{anchor|Warm-summer_mediterranean_climate}}Warm-summer Mediterranean climate

File:Koppen-Geiger Map Csb present.svg

Occasionally also termed the "cool-summer Mediterranean climate", this subtype of the Mediterranean climate (Csb) is less common and involves warm (but not hot) and dry summers, with no average monthly temperatures above {{convert|22|C|F}} during its warmest month and as usual an average in the coldest month between {{convert|18|and|−3|C|F}} or, in some applications, between {{convert|18|and|0|C|F}}.

Also, at least four months must average above {{convert|10|C|F}}.

Cool ocean currents, upwelling and higher latitudes are often the reason for this cooler type of Mediterranean climate.{{citation needed|date=April 2024}}

The other main reason for this cooler type is the altitude. For instance, Menton on the French coast has a Csa climate while Castellar, Alpes-Maritimes, the adjacent town just north of Menton, with an altitude between {{cvt|100.|and|1,382.|m}}, has a Csb climate instead.{{Cite web |url=https://fr.climate-data.org/europe/france/provence-alpes-cote-d-azur/castellar-325714 |title=Climat Castellar: Température de l'EAU à, Température moyenne Castellar, Pluviométrie, diagramme ombrothermique pour Castellar - Climate-Data.org |access-date=28 March 2020 |archive-url=https://web.archive.org/web/20200328151940/https://fr.climate-data.org/europe/france/provence-alpes-cote-d-azur/castellar-325714/ |archive-date=28 March 2020 |url-status=live }} The village of Siah Bisheh in Northern Iran also has a Csb climate because of its location inside the Alborz mountains.{{Webarchive|url=https://web.archive.org/web/20160217102629/http://www.chaharmahalmet.ir/iranarchive.asp|date=February 17, 2016}}

Winters in this zone are rainy and can be mild to chilly. Some locales in this zone experience some amount of snowfall, while others do not.

Csb climates are found in northwestern Iberian Peninsula (namely Galicia and the Norte region and west coast of Portugal), in coastal Northern California, in the Pacific Northwest (namely western Washington, western Oregon and southern portions of Vancouver Island in British Columbia),{{cite web|url=https://www.theweathernetwork.com/news/articles/the-warm-land-5-must-do-activities-at-this-hidden-bc-gem/74443|title=The Warm Land: 5 must-do activities at this hidden B.C. gem|access-date=21 February 2019|archive-url=https://web.archive.org/web/20190221165642/https://www.theweathernetwork.com/news/articles/the-warm-land-5-must-do-activities-at-this-hidden-bc-gem/74443|archive-date=21 February 2019|url-status=live}}{{cite web|url= https://vancouversun.com/travel/southern-vancouver-islands-small-communities|title= Explore Southern Vancouver Island's small communities|date= 8 July 2016|access-date= 21 February 2019|archive-url= https://web.archive.org/web/20190221224114/https://vancouversun.com/travel/southern-vancouver-islands-small-communities|archive-date= 21 February 2019|url-status= live}}{{cite book|url=https://books.google.com/books?id=QuBJAAAAYAAJ&q=victoria+canada+"mediterranean+climate"|title = Nature Canada|year = 1994}}{{cite book|url=https://books.google.com/books?id=xLQcAAAAMAAJ&q=victoria+canada+"mediterranean+climate"|title = Transactions of the Royal Canadian Institute|year = 1949| last1=Institute | first1=Royal Canadian }}{{cite book|url=https://books.google.com/books?id=pR0DAAAAMBAJ&q=victoria+canada+"mediterranean+climate"&pg=PA36|title = Cincinnati Magazine|date = June 1980}} in central Chile, in parts of southern Australia and in sections of southwestern South Africa. A few locations close to the south coast of England such as Weymouth and Portland just scrape into this climate classification due to very low rainfall in July. A trend towards slightly drier summers during the 1971–2000 climate average period, meant that this classification previously extended slightly further to include a few other weather stations in southern England, such as Bognor Regis and Teignmouth.{{cite web | url=https://www.metoffice.gov.uk/research/climate/maps-and-data/uk-climate-averages | title=UK climate averages }} Rarer instances of this climate can be found in relatively small and isolated high altitude areas of the Andes in Northern Ecuador, Peru, Colombia, and Western Venezuela.

{{climate chart

| Porto, Portugal

| 5.2 |13.8 |157.6

| 5.9 |15.0 |139.7

| 7.8 |17.4 |89.9

| 9.1 |18.1 |115.6

|11.6 |20.1 |97.6

|14.5 |23.5 |46

|15.9 |25.3 |18.3

|15.9 |25.7 |26.7

|14.7 |24.1 |71

|12.2 |20.7 |138

| 8.9 |17.1 |158.4

| 6.9 |14.4 |194.7

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|source=Instituto de Meteorologia{{cite web|url=http://www.meteo.pt/pt/oclima/normais/index.html?page=normais_pto.xml|title=Monthly Averages for Porto, Portugal|publisher=Instituto de Meteorologia|access-date=2 August 2010|archive-url=https://web.archive.org/web/20120226203513/http://www.meteo.pt/pt/oclima/normais/index.html?page=normais_pto.xml|archive-date=26 February 2012|url-status=live}} }}

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| Victoria, Canada

| 3.0 | 7.0 | 94.3

| 3.7 | 8.6 | 71.7

| 4.5 | 10.6 | 46.5

| 6.0 | 13.1 | 28.5

| 8.2 | 15.9 | 25.8

| 10.0 | 17.9 | 20.7

| 11.3 | 19.8 | 14.0

| 11.7 | 20.1 | 19.7

| 10.7 | 18.5 | 27.4

| 7.9 | 13.8 | 51.2

| 5.0 | 9.4 | 98.9

| 3.2 | 7.1 | 108.9

| float = left

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| source = Environment Canada{{cite web | url = http://www.climate.weatheroffice.gc.ca/climate_normals/results_e.html?stnID=113&lang=e&dCode=0&province=BC&provBut=Search&month1=0&month2=12 | title = Victoria Gonzales HTS, British Columbia | work = Canadian Climate Normals 1971–2000 | publisher = Environment Canada | language = en, fr | access-date = 15 February 2013 | date = 19 January 2011 | archive-url = https://web.archive.org/web/20130517080751/http://www.climate.weatheroffice.gc.ca/climate_normals/results_e.html?stnID=113&lang=e&dCode=0&province=BC&provBut=Search&month1=0&month2=12 | archive-date = 17 May 2013 | url-status = live }}}}

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| Cape Town, South Africa

|15.7 |26.1 |15

|15.6 |26.5 |17

|14.2 |25.4 |20

|11.9 |23 |41

| 9.4 |20.3 |69

| 7.8 |18.1 |93

| 7 |17.5 |82

| 7.5 |17.8 |77

| 8.7 |19.2 |40

|10.6 |21.3 |30

|13.2 |23.5 |14

|14.9 |24.9 |17

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|source=WMO{{cite web |url=http://www.worldweather.org/035/c00138.htm |title=Weather Information for Cape Town |publisher=World Weather Information Service |access-date=2 August 2010 |archive-url=https://web.archive.org/web/20100426062632/http://www.worldweather.org/035/c00138.htm |archive-date=26 April 2010 |url-status=live }} }}

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Cold-summer Mediterranean climate

File:Koppen-Geiger Map Csc present.svg

File:Köppen Csc US West Coast.png

The cold-summer subtype of the Mediterranean climate (Csc) is rare and predominantly found at scattered high-altitude locations along the west coasts of North and South America having a similar climate.{{citation needed|date=May 2022}} This type is characterized by cool, dry summers, with less than four months with a mean temperature at or above {{convert|10|C}}, as well as with cool, wet winters, with no winter month having a mean temperature below {{convert|0|C}} (or {{convert|-3|C|disp=sqbr}}, depending on the isotherm used). Regions in the Americas with this climate are influenced by the dry-summer trend (though briefly) that extends considerably poleward along the west coast, as well as the moderating influences of high altitude and relative proximity to the Pacific Ocean. These conditions maintain an unusually narrow temperature range through the year for climate zones at such distances from coasts.

In North America, areas with Csc climate can be found in the Olympic, Cascade, Klamath, and Sierra Nevada ranges in Washington, Oregon and California. These locations are found at high altitude nearby lower altitude regions characterized by a warm-summer Mediterranean climate (Csb) or hot-summer Mediterranean climate (Csa). A rare instance of this climate occurs in the tropics, on Haleakalā Summit in Hawaii.{{citation needed|date=April 2024}}

In South America, Csc regions can be found along the Andes in Chile and Argentina. The town of Balmaceda, Chile is one of the few towns confirmed to have this climate.{{citation needed|date=April 2024}}

Small areas with a Csc climate can be found at high elevations in Corsica.{{cite journal |first1=Andrés |last1=Navarro |first2=Eduardo |last2=García-Ortega |first3=Andrés |last3=Merino |first4=José Luis |last4=Sánchez |first5=Christian |last5=Kummerow |first6=Francisco J. |last6=Tapiador |title=Assessment of IMERG Precipitation Estimates over Europe |journal=Remote Sens. |year=2019 |volume=11 |issue=21 |pages=2470 |doi=10.3390/rs11212470 |bibcode=2019RemS...11.2470N |doi-access=free }}

In Norway, the small fishing village of Røstlandet, in Røst Municipality, above the Arctic Circle has a climate bordering on Csc and is known as a "climatic anomaly" due to abnormally warm temperatures despite its latitude located above 67°N latitude.{{Cite web |title=Observations and weather statistics |url=https://seklima.met.no/observations/ |access-date=2021-07-05 |publisher=Norwegian Meteorological Institute}}

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| Balmaceda, Chile

|6.7 |17.5 |28.1

|6.0 |17.7 |20.4

|4.5 |15.7 |37.5

|2.6 |11.9 |53.6

|0.6 |7.8 |92.5

|-2.0 |4.3 |85.2

|-2.7 |3.6 |83.5

|-1.0 |6.1 |72.2

|0.1 |9.4 |49.0

|2.1 |12.6 |29.6

|4.3 |14.7 |28.3

|5.8 |16.4 |31.7

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|source=DMC{{cite web |url=http://164.77.222.61/climatologia/publicaciones/Estadistica_ClimatologicaIII.pdf |title=Estadistica Climatologica Tomo III (pg 319-343) |publisher=Dirección General de Aeronáutica Civil |access-date=15 January 2013 |archive-url=https://web.archive.org/web/20120417142500/http://164.77.222.61/climatologia/publicaciones/Estadistica_ClimatologicaIII.pdf |archive-date=17 April 2012 |url-status=dead }} infochile{{cite web |url=http://www.atmosfera.cl/HTML/climatologia/DATOS/CHILESUR.HTM |archive-url=https://archive.today/20121209044738/http://www.atmosfera.cl/HTML/climatologia/DATOS/CHILESUR.HTM |url-status=dead |archive-date=9 December 2012 |title=Datos climatológicos Chile Sur |publisher=Atmosfera.cl}}}}

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| Haleakala Summit, United States

|0.9 |7.3 |203.2

|2.3 |9.9 |90.7

|2.5 |10.5 |77.5

|3.0 |11.2 |101.6

|3.9 |12.6 |34.3

|5.6 |14.6 |9.4

|5.4 |14.3 |11.9

|5.7 |14.7 |28.2

|5.6 |14.2 |40.4

|5.2 |13.8 |33.5

|3.1 |10.3 |103.9

|-0.1 |6 |118.6

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|source=The Western Regional Climate Center{{cite web | url =http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?hi1008 | title =Seasonal Temperature and Precipitation Information | access-date =3 November 2013 | publisher =Western Regional Climate Center | archive-url =https://web.archive.org/web/20161104024146/http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?hi1008 | archive-date =4 November 2016 | url-status =live }}|date=November 2013}}

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| Liawenee, Tasmania

|5.4 |19.1 |48.9

|5.2 |18.4 |37.4

|3.8 |16.1 |64.5

|1.8 |12.4 |65.9

|0.2 |9.0 |89.4

|-1.0 |6.6 |104.3

|-1.6 |5.6 |119.7

|-1.3 |6.5 |128.8

|-0.5 |9.0 |110.5

|0.7 |12.0 |69.2

|2.8 |15.0 |63.5

|3.9 |16.6 |59.1

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|source=Bureau of Meteorology{{cite web |url=http://www.bom.gov.au/climate/averages/tables/cw_096033_All.shtml |title = Climate statistics for Australian locations |publisher=Australian Government – Bureau of Meteorology |access-date=20 July 2022}}

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References

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