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Lai Châu | |
|---|---|
| Lai Châu City Thành phố Lai Châu | |
Lai Châu City Lake | |
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| Coordinates:22°23′57″N103°26′21″E / 22.39917°N 103.43917°E /22.39917; 103.43917 | |
| Country | |
| Province | Lai Châu |
| Established town | 10 October 2004 |
| Established city | 27 December 2013 |
| Area | |
• Total | 92.37 km2 (35.66 sq mi) |
| Population (2020)[1] | |
• Total | 42,973 |
| • Density | 465.2/km2 (1,205/sq mi) |
| Time zone | UTC+7 (Indochina Time) |
| Climate | Cwa |
| Website | thanhpho |

Lai Châu (listenⓘ) is a city in theNorthwest region ofVietnam. It is the capitalcity ofLai Châu Province. The city bordersPhong Thổ District,Sìn Hồ District andTam Đường District.

Lai Châu, orMuang Lay (Vietnamese: Mường Lay) was the seat of lords of theWhite Tai who were dominant over otherThai peoples of the area, though there was rivalry between the White Tai rulers of Muang Lay and Muang So.[2] During the 1870s Muang Lay was the base of lordĐèo Văn Trị of the White Tai who sought to unite and become chief of the 12 mường (Sino-Vietnamese:Châu /州) making up theSip Song Chau Tai. This he partially achieved, with the help first of the Chinese Black Flags, then later the French. His authority, and the autonomy of the area, was recognised by the French in 1890.
As of 2020 the city had a population of 42,973, covering an area of 92.37 km2.[1]
Lai Châu City is officially divided into 7 commune-level sub-divisions, including 5 wards (Đoàn Kết, Đông Phong, Quyết Thắng, Quyết Tiến, Tân Phong) and 2 rural communes (San Thàng, Sùng Phài).[1]
Lai Châu has ahumid subtropical climate (KöppenCwa), typical for northwestern Vietnam, with hot, oppressively humid, and wet summers and warm to very warm, dry winters.
| Climate data for Tam Đường station, Lai Châu, elevation 900 m (3,000 ft) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 28.7 (83.7) | 31.2 (88.2) | 34.0 (93.2) | 34.7 (94.5) | 34.5 (94.1) | 32.4 (90.3) | 32.7 (90.9) | 33.4 (92.1) | 32.2 (90.0) | 31.0 (87.8) | 29.5 (85.1) | 28.0 (82.4) | 34.7 (94.5) |
| Mean daily maximum °C (°F) | 18.8 (65.8) | 21.0 (69.8) | 24.4 (75.9) | 27.0 (80.6) | 27.5 (81.5) | 27.0 (80.6) | 26.8 (80.2) | 27.5 (81.5) | 27.0 (80.6) | 25.1 (77.2) | 22.1 (71.8) | 19.3 (66.7) | 24.5 (76.0) |
| Daily mean °C (°F) | 13.6 (56.5) | 15.4 (59.7) | 18.7 (65.7) | 21.4 (70.5) | 22.7 (72.9) | 23.1 (73.6) | 22.9 (73.2) | 23.1 (73.6) | 22.2 (72.0) | 20.2 (68.4) | 16.9 (62.4) | 13.9 (57.0) | 19.5 (67.1) |
| Mean daily minimum °C (°F) | 10.1 (50.2) | 11.4 (52.5) | 14.3 (57.7) | 17.2 (63.0) | 19.3 (66.7) | 20.7 (69.3) | 20.6 (69.1) | 20.4 (68.7) | 19.2 (66.6) | 17.0 (62.6) | 13.5 (56.3) | 10.3 (50.5) | 16.2 (61.2) |
| Record low °C (°F) | 0.8 (33.4) | 3.2 (37.8) | 2.9 (37.2) | 7.9 (46.2) | 11.9 (53.4) | 15.0 (59.0) | 16.9 (62.4) | 17.0 (62.6) | 12.7 (54.9) | 7.2 (45.0) | 4.0 (39.2) | −0.4 (31.3) | −0.4 (31.3) |
| Average rainfall mm (inches) | 40.1 (1.58) | 39.0 (1.54) | 81.2 (3.20) | 185.1 (7.29) | 340.4 (13.40) | 472.5 (18.60) | 545.2 (21.46) | 340.0 (13.39) | 186.2 (7.33) | 131.9 (5.19) | 75.3 (2.96) | 35.1 (1.38) | 2,469 (97.20) |
| Average rainy days | 7.2 | 7.0 | 8.4 | 14.0 | 21.9 | 25.2 | 26.3 | 23.0 | 16.3 | 12.5 | 8.2 | 5.1 | 175.0 |
| Averagerelative humidity (%) | 81.2 | 77.0 | 73.0 | 75.9 | 81.3 | 87.2 | 89.0 | 87.6 | 86.0 | 84.3 | 82.3 | 81.7 | 82.2 |
| Mean monthlysunshine hours | 161.5 | 167.0 | 189.3 | 204.3 | 186.4 | 114.5 | 117.2 | 145.2 | 157.6 | 156.4 | 164.1 | 168.0 | 1,936.8 |
| Source: Vietnam Institute for Building Science and Technology[3] | |||||||||||||
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