Climate averages 1991–2020
Dongguan weather
in September.
A hot, wet month: the 3rd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Dongguan: daytime highs average 30.5°C and nights cool to about 24.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 175 mm of rain on roughly 15 days, which makes September a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average September day.
The nearest other city in this atlas is Shijie (10 km away). In September its highs average 30.4°C, about as warm as Dongguan, with 175 mm of rain.
Among the 884 cities listed in China, Dongguan ranks joint 5th of 884 for the warmest September highs and joint 792nd of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Dongguan is 4.8°C warmer than that mean.
From September to October, average highs fall by 2.0°C to 28.4°C, and monthly rainfall falls from 175 mm to 51 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
Dongguan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.3°C11.1°C | 11.1°C | 35 | 5.3 | 10.911 h |
| February | 20.8°C13.1°C | 13.1°C | 47 | 7.8 | 11.411 h |
| March | 23.6°C16.2°C | 16.2°C | 107 | 13.0 | 12.012 h |
| April | 26.7°C20.2°C | 20.2°C | 182 | 15.7 | 12.713 h |
| May | 29.1°C23.2°C | 23.2°C | 295 | 20.6 | 13.213 h |
| June | 30.4°C25.3°C | 25.3°C | 381 | 23.7 | 13.514 h |
| July | 31.3°C25.9°C | 25.9°C | 245 | 22.8 | 13.413 h |
| August | 31.3°C25.7°C | 25.7°C | 291 | 23.1 | 12.913 h |
| September, selected | 30.5°C24.3°C | 24.3°C | 175 | 15.3 | 12.312 h |
| October | 28.4°C20.9°C | 20.9°C | 51 | 6.3 | 11.612 h |
| November | 25.1°C16.6°C | 16.6°C | 34 | 5.3 | 11.111 h |
| December | 20.6°C12.1°C | 12.1°C | 35 | 4.5 | 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
- Shijie in SeptemberChina · 10 kmHigh 30.4°C · Low 23.8°C · 175 mm rain
- Humen in SeptemberChina · 23 kmHigh 30.0°C · Low 24.6°C · 180 mm rain
- Tantou in SeptemberChina · 31 kmHigh 30.1°C · Low 24.8°C · 180 mm rain
- Shajing in SeptemberChina · 31 kmHigh 29.8°C · Low 25.0°C · 180 mm rain
- Licheng in SeptemberChina · 32 kmHigh 30.3°C · Low 23.5°C · 165 mm rain
- Dasha in SeptemberChina · 33 kmHigh 30.5°C · Low 24.2°C · 186 mm rain
- Shiqiao in SeptemberChina · 41 kmHigh 30.6°C · Low 24.4°C · 177 mm rain
- Bao'an Centre in SeptemberChina · 52 kmHigh 29.6°C · Low 24.9°C · 199 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 Dongguan) is explained once on the Dongguan year overview and on the Sources, method and limits page.
Shijie lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.