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Weather & Climate in Bắc Yên, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bắc Yên enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 52°F in January while summers reach 75°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 2,152 feet.
Temperature
52°F Jan (11°C)
75°F Jul (24°C)
| Annual Average | 66.8°F |
| 24% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 281 days/yr |
Geography
| Elevation | 2,152 ft (656 m) |
| Area | 11.4 sq mi (29.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 21.2463°N, 104.4328°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
13 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jul 27, 2020 | ~120km W of Hanoi, Vietnam | M4.9 | 47 km | 10 km |
| Apr 3, 2003 | 83 km S of Dien Bien Phu, Vietnam | M4.7 | 148 km | 10 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 54 km | 17 km |
| May 2, 2007 | 73 km S of Dien Bien Phu, Vietnam | M4.5 | 147 km | 10 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 26 km | 10 km |
| Mar 14, 2022 | 76 km SSE of Dien Bien Phu, Vietnam | M4.4 | 125 km | 10 km |
| Jan 7, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 111 km | 10 km |
| Jan 8, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 111 km | 10 km |
| Mar 25, 2024 | 27 km S of Xuân Mai, Vietnam | M4.2 | 134 km | 10 km |
| May 7, 2011 | 46 km SSW of S?n La, Vietnam | M4.1 | 84 km | 10 km |
| Oct 23, 1993 | 20 km SSW of Yên Bái, Vietnam | M4.1 | 56 km | 33 km |
| Oct 11, 1991 | 11 km N of Tuyên Quang, Vietnam | M4.1 | 111 km | 10 km |
| Sep 19, 2010 | 71 km SSW of Hòa Bình, Vietnam | M4.0 | 129 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
13 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 | 134 km |
| 2016 | Mirinae | Category 1 | 52 mph | 218 km |
| 2014 | Rammasun | Category 1 | 46 mph | 281 km |
| 2014 | Kalmaegi | Category 1 | 63 mph | 220 km |
| 2013 | Haiyan | Category 1 | — | 299 km |
| 2012 | Son-tinh | Category 3 | 81 mph | 233 km |
| 2003 | Krovanh | Category 1 | 58 mph | 257 km |
| 1997 | Zita | Category 1 | 46 mph | 173 km |
| 1996 | Frankie | Category 2 | 58 mph | 185 km |
| 1996 | Niki | Category 1 | 69 mph | 184 km |
| 1995 | Lois | Category 1 | 58 mph | 253 km |
| 1982 | Nancy | Category 1 | 81 mph | 278 km |
| 1980 | Ruth | Category 1 | 63 mph | 280 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 0.4 in | Coldest, Driest |
| February | 57°F (14°C) | 1.5 in | |
| March | 63°F (17°C) | 1.2 in | |
| April | 69°F (20°C) | 4.2 in | |
| May | 73°F (23°C) | 7.2 in | |
| June | 75°F (24°C) | 8.7 in | Warmest |
| July | 75°F (24°C) | 13.3 in | Wettest |
| August | 74°F (24°C) | 13.1 in | |
| September | 72°F (22°C) | 9.0 in | |
| October | 68°F (20°C) | 3.4 in | |
| November | 62°F (17°C) | 0.9 in | |
| December | 57°F (14°C) | 0.4 in |
Bắc Yên has a seasonal temperature swing of 23°F / from 52°F in January to 75°F in June. Total annual precipitation is 63.3 inches, with July being the wettest month (13.3") and January the driest (0.4").