Climate averages 1991–2020
Tuen Mun weather
in December.
A mild, fairly dry month: the 11th warmest and the 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 Tuen Mun: daytime highs average 20.4°C and nights cool to about 14.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 31 mm of rain on roughly 4 days, which makes December a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 47 min on an average December day.
The nearest other city in this atlas is San Tung Chung Hang (13 km away). In December its highs average 20.1°C, about as warm as Tuen Mun, with 29 mm of rain.
Among the 6 cities listed in Hong Kong, Tuen Mun ranks 1st of 6 for the warmest December highs and 4th of 6 for the driest December (rainfall, lowest first). The mean December high of those 6 cities is 20.0°C; Tuen Mun is 0.4°C warmer than that mean.
From December to January, average highs fall by 1.2°C to 19.2°C, and monthly rainfall rises from 31 mm to 32 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
Tuen Mun climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.2°C12.9°C | 12.9°C | 32 | 5.5 | 10.911 h |
| February | 20.5°C14.6°C | 14.6°C | 44 | 7.9 | 11.411 h |
| March | 23.2°C17.4°C | 17.4°C | 75 | 11.4 | 12.012 h |
| April | 26.2°C20.8°C | 20.8°C | 125 | 13.8 | 12.713 h |
| May | 28.5°C23.8°C | 23.8°C | 229 | 19.1 | 13.213 h |
| June | 29.7°C25.8°C | 25.8°C | 319 | 22.9 | 13.513 h |
| July | 30.4°C26.2°C | 26.2°C | 243 | 22.1 | 13.413 h |
| August | 30.4°C26.0°C | 26.0°C | 313 | 23.6 | 12.913 h |
| September | 29.7°C24.9°C | 24.9°C | 199 | 16.6 | 12.312 h |
| October | 27.7°C22.3°C | 22.3°C | 61 | 6.7 | 11.612 h |
| November | 24.6°C18.6°C | 18.6°C | 34 | 4.9 | 11.111 h |
| December, selected | 20.4°C14.1°C | 14.1°C | 31 | 4.2 | 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
- San Tung Chung Hang in DecemberHong Kong · 13 kmHigh 20.1°C · Low 14.8°C · 29 mm rain
- Kwai Chung in DecemberHong Kong · 17 kmHigh 20.0°C · Low 13.9°C · 34 mm rain
- Shenzhen in DecemberChina · 20 kmHigh 20.7°C · Low 13.8°C · 31 mm rain
- Tai Po in DecemberHong Kong · 21 kmHigh 20.3°C · Low 13.9°C · 29 mm rain
- Bao'an Centre in DecemberChina · 22 kmHigh 20.2°C · Low 13.6°C · 31 mm rain
- Sha Tin in DecemberHong Kong · 22 kmHigh 19.6°C · Low 14.1°C · 29 mm rain
- Hong Kong in DecemberHong Kong · 24 kmHigh 19.8°C · Low 14.6°C · 34 mm rain
- Tantou in DecemberChina · 42 kmHigh 20.5°C · Low 13.2°C · 41 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 Tuen Mun) is explained once on the Tuen Mun year overview and on the Sources, method and limits page.
Shenzhen and Bao'an Centre lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.