All Countries
Weather & Climate in Dien Bien Phu, Vietnam
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Dien Bien Phu enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 60°F in January while summers reach 76°F in July / relatively mild seasonal variation. The area gets 225 sunny days per year, above the national average. Annual precipitation totals 70.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,591 feet.
Temperature
60°F Jan (15°C)
76°F Jul (25°C)
| Annual Average | 69.9°F |
| 29% above US avg | |
| January Average | 60°F (15°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 225 days/yr |
Geography
| Elevation | 1,591 ft (485 m) |
| Area | 24.8 sq mi (64.3 km²) |
| Population Density | 3,413/sq mi |
| Coordinates | 21.3860°N, 103.0230°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Earthquake History
39 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Feb 19, 2001 | 31 km W of Dien Bien Phu, Vietnam | M4.9 | 32 km | 10 km |
| Apr 3, 2003 | 83 km S of Dien Bien Phu, Vietnam | M4.7 | 84 km | 10 km |
| Jan 14, 2019 | 51 km SW of Phôngsali, Laos | M4.6 | 130 km | 10 km |
| Mar 29, 1993 | 53 km N of Dien Bien Phu, Vietnam | M4.6 | 54 km | 33 km |
| Jul 19, 2014 | 19 km NNE of S?n La, Vietnam | M4.6 | 99 km | 17 km |
| May 2, 2007 | 73 km S of Dien Bien Phu, Vietnam | M4.5 | 74 km | 10 km |
| Apr 22, 2016 | 37 km NE of Phôngsali, Laos | M4.5 | 92 km | 10 km |
| Jun 16, 2020 | 100 km NNE of Phôngsali, Laos | M4.5 | 128 km | 10 km |
| Oct 6, 1991 | 33 km E of S?n La, Vietnam | M4.5 | 125 km | 10 km |
| Apr 12, 2002 | 94 km NE of Phôngsali, Laos | M4.5 | 116 km | 10 km |
| Feb 24, 2016 | 55 km WSW of Sa Pa, Vietnam | M4.5 | 96 km | 10 km |
| May 16, 2025 | 27 km S of Mường Lay, Vietnam | M4.5 | 42 km | 10 km |
| Mar 4, 2001 | 10 km WSW of Dien Bien Phu, Vietnam | M4.5 | 10 km | 10 km |
| Apr 2, 2001 | 74 km WSW of Sa Pa, Vietnam | M4.4 | 83 km | 33 km |
| Sep 19, 1993 | 52 km NNW of Phôngsali, Laos | M4.4 | 139 km | 33 km |
| Mar 14, 2022 | 76 km SSE of Dien Bien Phu, Vietnam | M4.4 | 77 km | 10 km |
| May 22, 2009 | 25 km SSE of Phôngsali, Laos | M4.4 | 82 km | 10 km |
| Oct 5, 2009 | 54 km NNW of Phôngsali, Laos | M4.4 | 144 km | 26 km |
| Mar 30, 1993 | 55 km N of Dien Bien Phu, Vietnam | M4.4 | 56 km | 33 km |
| Jan 10, 2019 | 52 km SW of Phôngsali, Laos | M4.4 | 130 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Yagi | Category 1 | — | 281 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 60°F (15°C) | 0.2 in | Coldest, Driest |
| February | 63°F (17°C) | 1.6 in | |
| March | 68°F (20°C) | 1.4 in | |
| April | 73°F (23°C) | 4.3 in | |
| May | 75°F (24°C) | 8.0 in | |
| June | 77°F (25°C) | 11.7 in | Warmest |
| July | 76°F (25°C) | 18.5 in | Wettest |
| August | 76°F (24°C) | 16.2 in | |
| September | 75°F (24°C) | 5.1 in | |
| October | 71°F (22°C) | 2.3 in | |
| November | 65°F (19°C) | 0.7 in | |
| December | 60°F (16°C) | 0.4 in |
Dien Bien Phu has a seasonal temperature swing of 17°F / from 60°F in January to 77°F in June. Total annual precipitation is 70.4 inches, with July being the wettest month (18.5") and January the driest (0.2").