Climate averages 1991–2020
Dien Bien Phu weather
in December.
A warm, fairly dry month: the coolest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Dien Bien Phu: daytime highs average 22.5°C and nights cool to about 12.7°C. By daytime temperature it is the coolest month of the year.
Expect about 29 mm of rain on roughly 5 days, which makes December a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 51 min on an average December day.
The nearest other city in this atlas is Thị Trấn Thuận Châu (69 km away). In December its highs average 21.4°C, 1.2°C cooler than Dien Bien Phu, with 38 mm of rain.
Among the 136 cities listed in Vietnam, Dien Bien Phu ranks 82nd of 136 for the warmest December highs and joint 7th of 136 for the driest December (rainfall, lowest first). The mean December high of those 136 cities is 25.0°C; Dien Bien Phu is 2.5°C cooler than that mean.
From December to January, average highs rise by 0.2°C to 22.7°C, and monthly rainfall rises from 29 mm to 35 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Thị Trấn Thuận Châu in DecemberVietnam · 69 kmHigh 21.4°C · Low 12.9°C · 38 mm rain
- Sơn La in DecemberVietnam · 93 kmHigh 21.0°C · Low 12.4°C · 23 mm rain
- Lào Cai in DecemberVietnam · 157 kmHigh 20.0°C · Low 13.2°C · 92 mm rain
- Yên Bái in DecemberVietnam · 199 kmHigh 19.7°C · Low 14.7°C · 41 mm rain
- Gejiu in DecemberChina · 220 kmHigh 15.6°C · Low 7.8°C · 18 mm rain
- Mengzi in DecemberChina · 223 kmHigh 16.6°C · Low 8.5°C · 27 mm rain
- Bắc Quang in DecemberVietnam · 226 kmHigh 20.2°C · Low 14.1°C · 71 mm rain
- Phú Thọ in DecemberVietnam · 228 kmHigh 20.5°C · Low 14.7°C · 28 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.