Climate averages 1991–2020
Dien Bien Phu weather
in August.
A hot, very wet month: the 5th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Dien Bien Phu: daytime highs average 28.6°C and nights cool to about 22.6°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 368 mm of rain on roughly 28 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 52 min on an average August day.
The nearest other city in this atlas is Thị Trấn Thuận Châu (69 km away). In August its highs average 28.5°C, about as warm as Dien Bien Phu, with 363 mm of rain.
Among the 136 cities listed in Vietnam, Dien Bien Phu ranks 124th of 136 for the warmest August highs and 121st of 136 for the driest August (rainfall, lowest first). The mean August high of those 136 cities is 30.5°C; Dien Bien Phu is 1.9°C cooler than that mean.
From August to September, average highs fall by 0.3°C to 28.3°C, and monthly rainfall falls from 368 mm to 199 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Dien Bien Phu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.7°C12.7°C | 12.7°C | 35 | 5.0 | 11.011 h |
| February | 25.6°C14.4°C | 14.4°C | 26 | 4.8 | 11.411 h |
| March | 29.2°C17.8°C | 17.8°C | 55 | 8.5 | 12.012 h |
| April | 30.1°C20.5°C | 20.5°C | 115 | 15.3 | 12.613 h |
| May | 30.2°C22.1°C | 22.1°C | 195 | 22.2 | 13.113 h |
| June | 29.3°C22.8°C | 22.8°C | 323 | 27.3 | 13.413 h |
| July | 28.5°C22.6°C | 22.6°C | 403 | 28.9 | 13.313 h |
| August, selected | 28.6°C22.6°C | 22.6°C | 368 | 28.3 | 12.913 h |
| September | 28.3°C21.8°C | 21.8°C | 199 | 21.5 | 12.312 h |
| October | 27.0°C19.5°C | 19.5°C | 72 | 11.5 | 11.712 h |
| November | 25.2°C16.0°C | 16.0°C | 33 | 5.5 | 11.111 h |
| December | 22.5°C12.7°C | 12.7°C | 29 | 4.5 | 10.911 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Thị Trấn Thuận Châu in AugustVietnam · 69 kmHigh 28.5°C · Low 22.2°C · 363 mm rain
- Sơn La in AugustVietnam · 93 kmHigh 28.0°C · Low 21.8°C · 283 mm rain
- Lào Cai in AugustVietnam · 157 kmHigh 31.2°C · Low 24.5°C · 268 mm rain
- Yên Bái in AugustVietnam · 199 kmHigh 30.6°C · Low 24.9°C · 415 mm rain
- Gejiu in AugustChina · 220 kmHigh 23.8°C · Low 17.3°C · 266 mm rain
- Mengzi in AugustChina · 223 kmHigh 25.9°C · Low 19.2°C · 273 mm rain
- Bắc Quang in AugustVietnam · 226 kmHigh 31.6°C · Low 24.8°C · 383 mm rain
- Phú Thọ in AugustVietnam · 228 kmHigh 31.2°C · Low 25.3°C · 369 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Dien Bien Phu) is explained once on the Dien Bien Phu year overview and on the Sources, method and limits page.