Climate averages 1991–2020
Lạng Sơn weather
in December.
A mild, moderately wet month: the 11th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Lạng Sơn: daytime highs average 18.8°C and nights cool to about 11.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 45 mm of rain on roughly 8 days, which makes December a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 50 min on an average December day.
The nearest other city in this atlas is Pingxiang, China (27 km away). In December its highs average 18.0°C, 0.8°C cooler than Lạng Sơn, with 37 mm of rain.
Among the 136 cities listed in Vietnam, Lạng Sơn ranks 135th of 136 for the warmest December highs and joint 49th of 136 for the driest December (rainfall, lowest first). The mean December high of those 136 cities is 25.0°C; Lạng Sơn is 6.2°C cooler than that mean.
From December to January, average highs fall by 1.7°C to 17.2°C, and monthly rainfall rises from 45 mm to 57 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
Lạng Sơn climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.2°C10.8°C | 10.8°C | 57 | 11.2 | 11.011 h |
| February | 19.4°C12.6°C | 12.6°C | 44 | 10.2 | 11.411 h |
| March | 22.8°C15.9°C | 15.9°C | 79 | 14.4 | 12.012 h |
| April | 26.8°C19.8°C | 19.8°C | 97 | 14.8 | 12.613 h |
| May | 29.0°C22.6°C | 22.6°C | 220 | 21.2 | 13.213 h |
| June | 30.3°C24.4°C | 24.4°C | 257 | 23.6 | 13.413 h |
| July | 30.3°C24.6°C | 24.6°C | 270 | 24.9 | 13.313 h |
| August | 30.0°C24.1°C | 24.1°C | 285 | 25.2 | 12.913 h |
| September | 28.8°C22.6°C | 22.6°C | 164 | 18.2 | 12.312 h |
| October | 26.5°C19.6°C | 19.6°C | 75 | 10.8 | 11.712 h |
| November | 23.2°C15.9°C | 15.9°C | 50 | 7.9 | 11.111 h |
| December, selected | 18.8°C11.8°C | 11.8°C | 45 | 8.2 | 10.811 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
- Pingxiang, China in DecemberChina · 27 kmHigh 18.0°C · Low 10.9°C · 37 mm rain
- Chũ in DecemberVietnam · 57 kmHigh 20.5°C · Low 12.9°C · 34 mm rain
- Chongzuo in DecemberChina · 86 kmHigh 19.3°C · Low 11.7°C · 35 mm rain
- Bắc Giang in DecemberVietnam · 87 kmHigh 20.8°C · Low 13.6°C · 33 mm rain
- Thị Trấn Đông Triều in DecemberVietnam · 89 kmHigh 21.2°C · Low 13.9°C · 31 mm rain
- Thị Trấn Mạo Khê in DecemberVietnam · 90 kmHigh 21.3°C · Low 14.0°C · 31 mm rain
- Việt Yên in DecemberVietnam · 92 kmHigh 20.9°C · Low 13.7°C · 33 mm rain
- Cung Kiệm in DecemberVietnam · 97 kmHigh 21.0°C · Low 13.9°C · 33 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 Lạng Sơn) is explained once on the Lạng Sơn year overview and on the Sources, method and limits page.