Climate averages 1991–2020
Dien Bien Phu weather
in April.
A hot, wet month: the 2nd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Dien Bien Phu: daytime highs average 30.1°C and nights cool to about 20.5°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 115 mm of rain on roughly 15 days, which makes April a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 38 min on an average April day.
The nearest other city in this atlas is Thị Trấn Thuận Châu (69 km away). In April its highs average 29.3°C, 0.9°C cooler than Dien Bien Phu, with 112 mm of rain.
Among the 136 cities listed in Vietnam, Dien Bien Phu ranks joint 71st of 136 for the warmest April highs and 122nd of 136 for the driest April (rainfall, lowest first). The mean April high of those 136 cities is 30.6°C; Dien Bien Phu is 0.5°C cooler than that mean.
From April to May, average highs stay level at 30.2°C, and monthly rainfall rises from 115 mm to 195 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Thị Trấn Thuận Châu in AprilVietnam · 69 kmHigh 29.3°C · Low 19.7°C · 112 mm rain
- Sơn La in AprilVietnam · 93 kmHigh 29.0°C · Low 19.5°C · 72 mm rain
- Lào Cai in AprilVietnam · 157 kmHigh 29.3°C · Low 20.6°C · 129 mm rain
- Yên Bái in AprilVietnam · 199 kmHigh 27.9°C · Low 21.3°C · 126 mm rain
- Gejiu in AprilChina · 220 kmHigh 23.9°C · Low 14.3°C · 52 mm rain
- Mengzi in AprilChina · 223 kmHigh 25.9°C · Low 16.2°C · 91 mm rain
- Bắc Quang in AprilVietnam · 226 kmHigh 28.3°C · Low 21.5°C · 168 mm rain
- Phú Thọ in AprilVietnam · 228 kmHigh 28.8°C · Low 21.8°C · 86 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.