Climate averages 1991–2020
Beihai weather
in December.
A mild, moderately wet month: the 10th warmest 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 mild month in Beihai: daytime highs average 20.1°C and nights cool to about 15.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 45 mm of rain on roughly 6 days, which makes December a moderately wet 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 Hepu (21 km away). In December its highs average 20.8°C, 0.7°C warmer than Beihai, with 34 mm of rain.
Among the 884 cities listed in China, Beihai ranks joint 59th of 884 for the warmest December highs and joint 716th of 884 for the driest December (rainfall, lowest first). The mean December high of those 884 cities is 7.5°C; Beihai is 12.6°C warmer than that mean.
From December to January, average highs fall by 1.6°C to 18.5°C, and monthly rainfall rises from 45 mm to 53 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
Beihai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.5°C13.6°C | 13.6°C | 53 | 8.9 | 11.011 h |
| February | 19.9°C15.2°C | 15.2°C | 43 | 7.9 | 11.411 h |
| March | 22.9°C18.1°C | 18.1°C | 63 | 10.1 | 12.012 h |
| April | 26.3°C22.1°C | 22.1°C | 79 | 10.0 | 12.613 h |
| May | 28.9°C25.2°C | 25.2°C | 197 | 17.0 | 13.113 h |
| June | 30.0°C27.2°C | 27.2°C | 399 | 22.8 | 13.413 h |
| July | 30.2°C27.5°C | 27.5°C | 463 | 23.4 | 13.313 h |
| August | 30.0°C27.0°C | 27.0°C | 439 | 24.7 | 12.913 h |
| September | 29.5°C25.8°C | 25.8°C | 267 | 19.2 | 12.312 h |
| October | 27.7°C23.2°C | 23.2°C | 89 | 9.1 | 11.712 h |
| November | 24.4°C19.3°C | 19.3°C | 55 | 7.0 | 11.111 h |
| December, selected | 20.1°C15.0°C | 15.0°C | 45 | 6.1 | 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
- Hepu in DecemberChina · 21 kmHigh 20.8°C · Low 13.7°C · 34 mm rain
- Xichang, China in DecemberChina · 24 kmHigh 20.1°C · Low 14.2°C · 29 mm rain
- Gongguan in DecemberChina · 61 kmHigh 21.4°C · Low 13.7°C · 34 mm rain
- Shankou in DecemberChina · 64 kmHigh 21.2°C · Low 14.7°C · 41 mm rain
- Baisha (Guangxi), China in DecemberChina · 64 kmHigh 21.5°C · Low 14.2°C · 34 mm rain
- Qinzhou in DecemberChina · 73 kmHigh 19.9°C · Low 12.5°C · 34 mm rain
- Fangchenggang in DecemberChina · 85 kmHigh 19.5°C · Low 12.8°C · 38 mm rain
- Móng Cái in DecemberVietnam · 119 kmHigh 19.1°C · Low 14.0°C · 53 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 Beihai) is explained once on the Beihai year overview and on the Sources, method and limits page.