Climate averages 1991–2020
Changsha, China weather
in September.
A hot, very wet month: the 4th 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 Changsha, China: daytime highs average 30.1°C and nights cool to about 23.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 203 mm of rain on roughly 18 days, which makes September a very wet month (the 8th 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 Taishan (17 km away). In September its highs average 30.1°C, about as warm as Changsha, China, with 212 mm of rain.
Among the 884 cities listed in China, Changsha, China ranks joint 38th of 884 for the warmest September highs and joint 848th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Changsha, China is 4.4°C warmer than that mean.
From September to October, average highs fall by 2.0°C to 28.0°C, and monthly rainfall falls from 203 mm to 71 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
Changsha, China climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.2°C11.1°C | 11.1°C | 33 | 5.4 | 10.911 h |
| February | 20.8°C13.1°C | 13.1°C | 42 | 8.5 | 11.411 h |
| March | 23.9°C16.4°C | 16.4°C | 86 | 12.6 | 12.012 h |
| April | 27.1°C20.3°C | 20.3°C | 158 | 15.6 | 12.713 h |
| May | 29.3°C23.3°C | 23.3°C | 249 | 21.4 | 13.213 h |
| June | 30.5°C25.2°C | 25.2°C | 283 | 22.6 | 13.513 h |
| July | 31.2°C25.6°C | 25.6°C | 224 | 21.5 | 13.413 h |
| August | 31.1°C25.3°C | 25.3°C | 272 | 23.5 | 12.913 h |
| September, selected | 30.1°C23.8°C | 23.8°C | 203 | 17.7 | 12.312 h |
| October | 28.0°C20.6°C | 20.6°C | 71 | 7.5 | 11.612 h |
| November | 24.8°C16.5°C | 16.5°C | 35 | 5.5 | 11.111 h |
| December | 20.4°C12.1°C | 12.1°C | 33 | 4.6 | 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
- Taishan in SeptemberChina · 17 kmHigh 30.1°C · Low 24.1°C · 212 mm rain
- Encheng in SeptemberChina · 45 kmHigh 29.7°C · Low 23.7°C · 194 mm rain
- Jiangmen in SeptemberChina · 47 kmHigh 30.3°C · Low 24.2°C · 210 mm rain
- Shaping in SeptemberChina · 52 kmHigh 30.3°C · Low 24.2°C · 188 mm rain
- Jing’an in SeptemberChina · 65 kmHigh 29.3°C · Low 25.3°C · 223 mm rain
- Nantou, China in SeptemberChina · 73 kmHigh 30.4°C · Low 24.5°C · 195 mm rain
- Zhongshan in SeptemberChina · 73 kmHigh 30.1°C · Low 24.8°C · 197 mm rain
- Daliang in SeptemberChina · 77 kmHigh 30.5°C · Low 24.4°C · 195 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 Changsha) is explained once on the Changsha, China year overview and on the Sources, method and limits page.