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Weather & Climate in Yên Châu, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yên Châu enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 52°F in January while summers reach 74°F in July. The area gets 281 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 60.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 965 feet.
Temperature
52°F Jan (11°C)
74°F Jul (23°C)
| Annual Average | 66.7°F |
| 24% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 281 days/yr |
Geography
| Elevation | 965 ft (294 m) |
| Area | 124.9 sq mi (323.5 km²) |
| Population Density | 0/sq mi |
| Coordinates | 21.0458°N, 104.3010°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jul 27, 2020 | ~120km W of Hanoi, Vietnam | M4.9 | 39 km | 10 km |
| Apr 3, 2003 | 83 km S of Dien Bien Phu, Vietnam | M4.7 | 126 km | 10 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 60 km | 17 km |
| Mar 4, 2001 | 10 km WSW of Dien Bien Phu, Vietnam | M4.5 | 147 km | 10 km |
| May 16, 2025 | 27 km S of Mường Lay, Vietnam | M4.5 | 149 km | 10 km |
| May 2, 2007 | 73 km S of Dien Bien Phu, Vietnam | M4.5 | 127 km | 10 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 38 km | 10 km |
| Jun 21, 1995 | 83 km W of Xam Nua, Laos | M4.4 | 134 km | 33 km |
| Mar 14, 2022 | 76 km SSE of Dien Bien Phu, Vietnam | M4.4 | 104 km | 10 km |
| Jan 8, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 103 km | 10 km |
| Jan 7, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 103 km | 10 km |
| Mar 25, 2024 | 27 km S of Xuân Mai, Vietnam | M4.2 | 137 km | 10 km |
| May 7, 2011 | 46 km SSW of S?n La, Vietnam | M4.1 | 65 km | 10 km |
| Oct 23, 1993 | 20 km SSW of Yên Bái, Vietnam | M4.1 | 81 km | 33 km |
| Oct 11, 1991 | 11 km N of Tuyên Quang, Vietnam | M4.1 | 136 km | 10 km |
| Feb 19, 2001 | 17 km SW of Dien Bien Phu, Vietnam | M4.0 | 150 km | 10 km |
| Sep 19, 2010 | 71 km SSW of Hòa Bình, Vietnam | M4.0 | 119 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
11 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Yagi | Category 3 | 104 mph | 145 km |
| 2016 | Mirinae | Category 1 | 52 mph | 219 km |
| 2014 | Kalmaegi | Category 1 | 63 mph | 239 km |
| 2012 | Son-tinh | Category 2 | 81 mph | 242 km |
| 2003 | Krovanh | Category 1 | 58 mph | 274 km |
| 1997 | Zita | Category 1 | 46 mph | 187 km |
| 1996 | Frankie | Category 2 | 52 mph | 186 km |
| 1996 | Niki | Category 1 | 69 mph | 178 km |
| 1995 | Lois | Category 1 | 58 mph | 240 km |
| 1982 | Nancy | Category 1 | 81 mph | 265 km |
| 1980 | Ruth | Category 1 | 63 mph | 281 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 0.4 in | Coldest |
| February | 58°F (15°C) | 1.6 in | |
| March | 64°F (18°C) | 1.3 in | |
| April | 69°F (21°C) | 4.6 in | |
| May | 72°F (22°C) | 7.5 in | |
| June | 74°F (23°C) | 9.2 in | Warmest |
| July | 74°F (23°C) | 14.2 in | Wettest |
| August | 74°F (23°C) | 13.0 in | |
| September | 72°F (22°C) | 7.5 in | |
| October | 68°F (20°C) | 3.0 in | |
| November | 62°F (17°C) | 0.8 in | |
| December | 57°F (14°C) | 0.3 in | Driest |
Yên Châu has a seasonal temperature swing of 22°F / from 52°F in January to 74°F in June. Total annual precipitation is 63.4 inches, with July being the wettest month (14.2") and December the driest (0.3").