Climate averages 1991–2020
San Tung Chung Hang weather
in September.
A hot, very wet month: the 3rd warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in San Tung Chung Hang: daytime highs average 29.3°C and nights cool to about 25.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 204 mm of rain on roughly 17 days, which makes September a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average September day.
The nearest other city in this atlas is Tuen Mun (13 km away). In September its highs average 29.7°C, about as warm as San Tung Chung Hang, with 199 mm of rain.
Among the 6 cities listed in Hong Kong, San Tung Chung Hang ranks 3rd of 6 for the warmest September highs and 4th of 6 for the driest September (rainfall, lowest first). The mean September high of those 6 cities is 29.3°C; San Tung Chung Hang is 0.1°C warmer than that mean.
From September to October, average highs fall by 1.8°C to 27.5°C, and monthly rainfall falls from 204 mm to 70 mm.
The annual picture
September 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
San Tung Chung Hang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.8°C13.6°C | 13.6°C | 24 | 4.1 | 10.911 h |
| February | 19.9°C15.0°C | 15.0°C | 35 | 6.4 | 11.411 h |
| March | 22.5°C17.7°C | 17.7°C | 58 | 9.4 | 12.012 h |
| April | 25.4°C21.0°C | 21.0°C | 107 | 12.7 | 12.713 h |
| May | 27.9°C24.1°C | 24.1°C | 209 | 17.9 | 13.213 h |
| June | 29.2°C26.1°C | 26.1°C | 302 | 22.5 | 13.513 h |
| July | 29.9°C26.5°C | 26.5°C | 246 | 21.2 | 13.413 h |
| August | 29.9°C26.4°C | 26.4°C | 312 | 22.7 | 12.913 h |
| September, selected | 29.3°C25.4°C | 25.4°C | 204 | 16.6 | 12.312 h |
| October | 27.5°C22.9°C | 22.9°C | 70 | 6.7 | 11.712 h |
| November | 24.3°C19.2°C | 19.2°C | 34 | 4.7 | 11.111 h |
| December | 20.1°C14.8°C | 14.8°C | 29 | 3.8 | 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
September in nearby cities
- Tuen Mun in SeptemberHong Kong · 13 kmHigh 29.7°C · Low 24.9°C · 199 mm rain
- Kwai Chung in SeptemberHong Kong · 22 kmHigh 29.2°C · Low 24.6°C · 214 mm rain
- Hong Kong in SeptemberHong Kong · 24 kmHigh 28.9°C · Low 25.0°C · 214 mm rain
- Sha Tin in SeptemberHong Kong · 27 kmHigh 28.8°C · Low 24.7°C · 203 mm rain
- Tai Po in SeptemberHong Kong · 30 kmHigh 29.6°C · Low 25.0°C · 203 mm rain
- Shenzhen in SeptemberChina · 32 kmHigh 29.9°C · Low 25.0°C · 199 mm rain
- Bao'an Centre in SeptemberChina · 34 kmHigh 29.6°C · Low 24.9°C · 199 mm rain
- Zhuhai in SeptemberChina · 39 kmHigh 29.4°C · Low 25.1°C · 215 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 San Tung Chung Hang) is explained once on the San Tung Chung Hang year overview and on the Sources, method and limits page.