Climate averages 1991–2020
Weather in Hong Kong in September
In September, average daytime highs across the 6 cities listed in Hong Kong range from 28.8°C in Sha Tin to 29.7°C in Tuen Mun. Monthly rainfall ranges from 199 mm in Tuen Mun to 214 mm in Hong Kong.
Long-term climate patterns, not a forecast for a particular trip.
City by city
September in Hong Kong
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Hong Kong | 28.9°C25.0°C | 25.0°C | 214 | 16.2 |
| Tuen Mun | 29.7°C24.9°C | 24.9°C | 199 | 16.6 |
| Sha Tin | 28.8°C24.7°C | 24.7°C | 203 | 17.0 |
| Kwai Chung | 29.2°C24.6°C | 24.6°C | 214 | 16.2 |
| Tai Po | 29.6°C25.0°C | 25.0°C | 203 | 17.0 |
| San Tung Chung Hang | 29.3°C25.4°C | 25.4°C | 204 | 16.6 |
A rain day is a local calendar day with at least 1 mm of precipitation.