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Weather & Climate in Than Uyên, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Than Uyên enjoys a temperate climate with an average annual temperature of 67°F (20°C). Winters average 56°F in January while summers reach 75°F in July / relatively mild seasonal variation. The area gets 214 sunny days per year. Annual precipitation totals 71.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,926 feet.
Temperature
56°F Jan (13°C)
75°F Jul (24°C)
| Annual Average | 67.2°F |
| 24% above US avg | |
| January Average | 56°F (13°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 214 days/yr |
Geography
| Elevation | 1,926 ft (587 m) |
| Area | 61.1 sq mi (158.2 km²) |
| Population Density | 90/sq mi |
| Coordinates | 21.9591°N, 103.8800°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
29 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Apr 24, 1995 | 73 km SSW of Gejiu, China | M5.2 | 132 km | 33 km |
| Jul 27, 2020 | ~120km W of Hanoi, Vietnam | M4.9 | 144 km | 10 km |
| Feb 19, 2001 | 31 km W of Dien Bien Phu, Vietnam | M4.9 | 136 km | 10 km |
| Mar 29, 1993 | 53 km N of Dien Bien Phu, Vietnam | M4.6 | 81 km | 33 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 53 km | 17 km |
| Feb 24, 2016 | 55 km WSW of Sa Pa, Vietnam | M4.5 | 63 km | 10 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 74 km | 10 km |
| May 16, 2025 | 27 km S of Mường Lay, Vietnam | M4.5 | 85 km | 10 km |
| Mar 4, 2001 | 10 km WSW of Dien Bien Phu, Vietnam | M4.5 | 119 km | 10 km |
| Apr 12, 2002 | 94 km NE of Phôngsali, Laos | M4.5 | 135 km | 10 km |
| Jun 16, 2020 | 100 km NNE of Phôngsali, Laos | M4.5 | 144 km | 10 km |
| Mar 14, 2022 | 76 km SSE of Dien Bien Phu, Vietnam | M4.4 | 144 km | 10 km |
| Mar 30, 1993 | 55 km N of Dien Bien Phu, Vietnam | M4.4 | 84 km | 33 km |
| Nov 9, 1995 | 76 km ENE of Phôngsali, Laos | M4.4 | 120 km | 33 km |
| Apr 2, 2001 | 74 km WSW of Sa Pa, Vietnam | M4.4 | 77 km | 33 km |
| Jan 7, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 83 km | 10 km |
| Jan 8, 2018 | 36 km E of Dien Bien Phu, Vietnam | M4.3 | 84 km | 10 km |
| Dec 21, 1993 | 62 km WSW of Sa Pa, Vietnam | M4.3 | 71 km | 10 km |
| Nov 28, 2001 | 82 km W of Sa Pa, Vietnam | M4.3 | 102 km | 33 km |
| Nov 13, 1996 | 100 km NE of Phôngsali, Laos | M4.3 | 123 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
5 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Yagi | Category 2 | 63 mph | 216 km |
| 2014 | Kalmaegi | Category 1 | 63 mph | 272 km |
| 1997 | Zita | Category 1 | 46 mph | 245 km |
| 1996 | Frankie | Category 2 | 52 mph | 279 km |
| 1996 | Niki | Category 1 | 63 mph | 282 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 56°F (13°C) | 0.6 in | Coldest |
| February | 58°F (15°C) | 1.9 in | |
| March | 64°F (18°C) | 1.7 in | |
| April | 70°F (21°C) | 5.2 in | |
| May | 73°F (23°C) | 8.4 in | |
| June | 75°F (24°C) | 10.4 in | Warmest |
| July | 75°F (24°C) | 15.4 in | Wettest |
| August | 75°F (24°C) | 14.1 in | |
| September | 73°F (23°C) | 8.6 in | |
| October | 69°F (20°C) | 3.7 in | |
| November | 62°F (17°C) | 0.9 in | |
| December | 57°F (14°C) | 0.2 in | Driest |
Than Uyên has a seasonal temperature swing of 19°F / from 56°F in January to 75°F in June. Total annual precipitation is 71.1 inches, with July being the wettest month (15.4") and December the driest (0.2").