Climate averages 1991–2020
Tuen Mun weather
in January.
A mild, 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.
January is a mild month in Tuen Mun: daytime highs average 19.2°C and nights cool to about 12.9°C. By daytime temperature it is the coolest month of the year.
Expect about 32 mm of rain on roughly 6 days, which makes January a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 56 min on an average January day.
The nearest other city in this atlas is San Tung Chung Hang (13 km away). In January its highs average 18.8°C, about as warm as Tuen Mun, with 24 mm of rain.
Among the 6 cities listed in Hong Kong, Tuen Mun ranks 1st of 6 for the warmest January highs and 6th of 6 for the driest January (rainfall, lowest first). The mean January high of those 6 cities is 18.8°C; Tuen Mun is 0.4°C warmer than that mean.
From January to February, average highs rise by 1.3°C to 20.5°C, and monthly rainfall rises from 32 mm to 44 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- San Tung Chung Hang in JanuaryHong Kong · 13 kmHigh 18.8°C · Low 13.6°C · 24 mm rain
- Kwai Chung in JanuaryHong Kong · 17 kmHigh 18.9°C · Low 12.8°C · 29 mm rain
- Shenzhen in JanuaryChina · 20 kmHigh 19.5°C · Low 12.7°C · 32 mm rain
- Tai Po in JanuaryHong Kong · 21 kmHigh 19.1°C · Low 12.8°C · 24 mm rain
- Bao'an Centre in JanuaryChina · 22 kmHigh 18.9°C · Low 12.4°C · 32 mm rain
- Sha Tin in JanuaryHong Kong · 22 kmHigh 18.3°C · Low 12.9°C · 24 mm rain
- Hong Kong in JanuaryHong Kong · 24 kmHigh 18.5°C · Low 13.4°C · 29 mm rain
- Tantou in JanuaryChina · 42 kmHigh 19.2°C · Low 12.0°C · 51 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.