Climate averages 1991–2020
Nanchang weather
in September.
A hot, moderately wet month: the 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Nanchang: daytime highs average 29.1°C and nights cool to about 22.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 73 mm of rain on roughly 8 days, which makes September a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 21 min on an average September day.
The nearest other city in this atlas is Poyang (86 km away). In September its highs average 29.4°C, about as warm as Nanchang, with 77 mm of rain.
Among the 884 cities listed in China, Nanchang ranks joint 135th of 884 for the warmest September highs and joint 290th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Nanchang is 3.4°C warmer than that mean.
From September to October, average highs fall by 4.8°C to 24.3°C, and monthly rainfall falls from 73 mm to 53 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
Nanchang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.9°C2.9°C | 2.9°C | 66 | 9.8 | 10.511 h |
| February | 12.6°C4.9°C | 4.9°C | 91 | 11.1 | 11.211 h |
| March | 16.7°C8.7°C | 8.7°C | 170 | 16.1 | 12.012 h |
| April | 22.8°C14.4°C | 14.4°C | 195 | 16.1 | 12.813 h |
| May | 27.1°C19.4°C | 19.4°C | 228 | 15.7 | 13.614 h |
| June | 29.4°C23.1°C | 23.1°C | 338 | 17.9 | 13.914 h |
| July | 32.9°C26.3°C | 26.3°C | 188 | 13.1 | 13.814 h |
| August | 32.5°C25.9°C | 25.9°C | 136 | 13.4 | 13.213 h |
| September, selected | 29.1°C22.0°C | 22.0°C | 73 | 8.4 | 12.412 h |
| October | 24.3°C16.5°C | 16.5°C | 53 | 6.1 | 11.512 h |
| November | 18.3°C10.5°C | 10.5°C | 77 | 7.6 | 10.711 h |
| December | 12.2°C4.7°C | 4.7°C | 48 | 7.0 | 10.410 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
- Poyang in SeptemberChina · 86 kmHigh 29.4°C · Low 22.5°C · 77 mm rain
- Jinfeng in SeptemberChina · 88 kmHigh 29.8°C · Low 22.3°C · 84 mm rain
- Fuzhou, China in SeptemberChina · 93 kmHigh 29.5°C · Low 22.0°C · 79 mm rain
- Bashan in SeptemberChina · 104 kmHigh 29.3°C · Low 21.9°C · 89 mm rain
- Jiujiang in SeptemberChina · 114 kmHigh 28.1°C · Low 21.5°C · 91 mm rain
- Yingtan in SeptemberChina · 123 kmHigh 29.9°C · Low 22.0°C · 79 mm rain
- Xiugu in SeptemberChina · 125 kmHigh 29.6°C · Low 22.1°C · 92 mm rain
- Wuxue in SeptemberChina · 133 kmHigh 28.2°C · Low 21.2°C · 85 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 Nanchang) is explained once on the Nanchang year overview and on the Sources, method and limits page.