Yên Bái
{{Short description|Former provincial city in Vietnam}}
{{Infobox settlement
| name = Yên Bái
| official_name = Yên Bái City
{{nobold|{{lang|vi|Thành phố Yên Bái}} }}
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| settlement_type = Provincial city (Class-2)
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| image_skyline = Đồng Tâm, tp. Yên Bái, Yên Bái, Vietnam - panoramio.jpg
| imagesize = 300px
| image_caption = Yên Bái
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| image_map = {{Infobox mapframe|zoom=11|frame-width=280|frame-height=280}}
| map_caption = Interactive map outlining Yên Bái City
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| pushpin_map = Vietnam
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| pushpin_map_caption = Location of in Vietnam
| pushpin_mapsize = 300
| subdivision_type = Country
| subdivision_name = {{flag|Vietnam}}
| subdivision_type1 = Province
| subdivision_name1 = Yên Bái
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| parts_type = Subdivision
| parts = 9 wards and 6 rural communes
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| extinct_date = 1 July 2025
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| area_total_km2 = 108.15
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| population_as_of = 2019
| population_footnotes = {{cite book
| author = General Statistics Office of Vietnam | year = 2019 | url = https://www.gso.gov.vn/wp-content/uploads/2019/12/Ket-qua-toan-bo-Tong-dieu-tra-dan-so-va-nha-o-2019.pdf | title = "Completed Results of the 2019 Viet Nam Population and Housing Census" | publisher = Statistical Publishing House (Vietnam) | isbn= 978-604-75-1532-5 }}
| population_note =
| population_total = 100,631
| population_density_km2 = auto
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| coordinates = {{coord|21|42|N|104|52|E|region:VN|display=inline}}
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| website = {{url|https://thanhphoyenbai.yenbai.gov.vn/}}
| footnotes =
| blank_name_sec2 = Climate
| blank_info_sec2 = Cwa
}}
Yên Bái ({{audio|Yen Bai.ogg|listen|help=no}}) is a city in Vietnam. It is located in the province of Lao Cai, in the north-east region of Vietnam. The city bordered the former districts of Yên Bình District and Trấn Yên District. The city was a settlement along the banks of the Red River, approximately 183 km northwest of Hanoi. It was one of the important trading hubs between the highlands and the lowlands of Northern Vietnam.
History
At the end of the sixteenth century Yên Bái was a small village in Bach Lam district, Quy Hoa district, Hung Hoa province. On April 11, 1900, Yen Bai province was established by the French colonialist government. The city grew in size with the opening of the Hanoi–Lào Cai railway, which attracted many migrants.
On February 10, 1930, part of the 4th Regiment of Tonkinese Rifles stationed at Yen Bai mutinied against their French officers in the Yên Bái mutiny. They were suppressed by loyal troops from the same unit. This incident led to widespread disturbances against French rule across northeastern Vietnam during 1930–31.{{Cite journal |last=Rettig |first=Tobias |date=November 2002 |title=French military policies in the aftermath of the Yên bay mutiny, 1930: old security dilemmas return to the surface. |url=https://ink.library.smu.edu.sg/soss_research/274 |journal=South East Asia Research|doi=10.5367/000000002101297099 }}
On July 1, 2025, as per the plan to arrange and merge administrative units in Vietnam, Yên Bái province and Lào Cai province merged to become the new Lào Cai province. In addition to the merge, due to the disestablishment of the "provincial city" tier according to the plan, the capital of Yên Bái province, Yên Bái city was disbanded. The former Yên Bái city was divided into 4 wards: Yên Bái ward, Văn Phú ward, Nam Cường ward and Âu Lâu ward.
Yên Bái ward is currently the new capital of the new Lào Cai province.
Demographics
As of 2019, the city had a population of 100,631, covering an area of 108.15 km2.
Administrative divisions
Yên Bái contained and administered 9 wards and 6 rural communes:
- Đồng Tâm
- Hồng Hà
- Hợp Minh
- Minh Tân
- Nam Cường
- Nguyễn Phúc
- Nguyễn Thái Học
- Yên Ninh
- Yên Thịnh
Rural communes:
- Âu Lâu
- Giới Phiên
- Minh Bảo
- Tân Thịnh
- Tuy Lộc
- Văn Phú
Climate
{{Weather box|width=auto
|metric first=y
|single line=y
|location = Yên Bái
|Jan high C = 19.2
|Feb high C = 20.3
|Mar high C = 23.2
|Apr high C = 27.2
|May high C = 31.3
|Jun high C = 32.7
|Jul high C = 32.6
|Aug high C = 32.5
|Sep high C = 31.5
|Oct high C = 28.8
|Nov high C = 25.3
|Dec high C = 21.6
|year high C = 27.2
|Jan mean C = 15.8
|Feb mean C = 17.1
|Mar mean C = 19.9
|Apr mean C = 23.6
|May mean C = 26.8
|Jun mean C = 28.2
|Jul mean C = 28.2
|Aug mean C = 27.8
|Sep mean C = 26.7
|Oct mean C = 24.3
|Nov mean C = 20.8
|Dec mean C = 17.3
|year mean C = 23.0
|Jan low C = 13.6
|Feb low C = 15.1
|Mar low C = 17.9
|Apr low C = 21.3
|May low C = 23.8
|Jun low C = 25.2
|Jul low C = 25.3
|Aug low C = 24.9
|Sep low C = 23.8
|Oct low C = 21.5
|Nov low C = 18.0
|Dec low C = 14.6
|year low C = 20.4
|Jan record high C = 30.4 |Jan record low C = 3.3
|Feb record high C = 34.8 |Feb record low C = 5.1
|Mar record high C = 35.5 |Mar record low C = 6.8
|Apr record high C = 37.9 |Apr record low C = 11.0
|May record high C = 40.0 |May record low C = 16.8
|Jun record high C = 40.4 |Jun record low C = 18.6
|Jul record high C = 39.8 |Jul record low C = 19.5
|Aug record high C = 39.6 |Aug record low C = 18.3
|Sep record high C = 37.8 |Sep record low C = 16.9
|Oct record high C = 37.2 |Oct record low C = 11.3
|Nov record high C = 34.0 |Nov record low C = 6.8
|Dec record high C = 30.8 |Dec record low C = 2.9
|year record high C = 40.4 |year record low C = 2.9
|rain colour = green
|Jan rain mm = 36.3
|Feb rain mm = 40.8
|Mar rain mm = 72.6
|Apr rain mm = 123.1
|May rain mm = 222.9
|Jun rain mm = 262.4
|Jul rain mm = 309.0
|Aug rain mm = 364.2
|Sep rain mm = 272.9
|Oct rain mm = 163.6
|Nov rain mm = 62.8
|Dec rain mm = 29.9
|year rain mm = 1960.6
|Jan rain days = 14.4
|Feb rain days = 16.4
|Mar rain days = 20.7
|Apr rain days = 20.3
|May rain days = 16.5
|Jun rain days = 16.3
|Jul rain days = 18.5
|Aug rain days = 18.2
|Sep rain days = 14.2
|Oct rain days = 11.6
|Nov rain days = 9.1
|Dec rain days = 9.3
|year rain days = 185.9
|Jan humidity = 87.2
|Feb humidity = 88.0
|Mar humidity = 88.5
|Apr humidity = 87.9
|May humidity = 84.3
|Jun humidity = 84.6
|Jul humidity = 85.6
|Aug humidity = 86.2
|Sep humidity = 85.6
|Oct humidity = 85.2
|Nov humidity = 85.0
|Dec humidity = 84.8
|year humidity = 86.1
|Jan sun = 51.7
|Feb sun = 40.3
|Mar sun = 43.0
|Apr sun = 73.7
|May sun = 147.1
|Jun sun = 149.5
|Jul sun = 163.5
|Aug sun = 174.5
|Sep sun = 169.5
|Oct sun = 140.0
|Nov sun = 119.3
|Dec sun = 97.3
|year sun = 1363.9
|source 1 = Vietnam Institute for Building Science and Technology{{cite web|title=Vietnam Institute for Building Science and Technology|url=https://datafiles.chinhphu.vn/cpp/files/vbpq/2022/10/02-bxd.pdf |lang=en}}
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References
{{Reflist}}
{{Cities in Vietnam}}
{{Districts of Northwest Vietnam}}
{{Authority control}}
{{Coord|21|42|N|104|52|E|display=title|region:VN_type:city_source:GNS-enwiki}}
{{DEFAULTSORT:Yen Bai}}
Category:Populated places in Yên Bái province
Category:Provincial capitals in Vietnam
Category:Districts of Yên Bái province
{{YenBai-geo-stub}}