Climate averages 1991–2020
Suzhou, China weather
in September.
A warm, moderately wet month: the joint 4th warmest and the 9th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Suzhou, China: daytime highs average 26.8°C and nights cool to about 18.4°C. By daytime temperature it is the joint 4th warmest of the 12 months.
Expect about 80 mm of rain on roughly 8 days, which makes September a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.
The nearest other city in this atlas is Suixi (34 km away). In September its highs average 26.8°C, about as warm as Suzhou, China, with 76 mm of rain.
Among the 884 cities listed in China, Suzhou, China ranks joint 340th of 884 for the warmest September highs and joint 383rd of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Suzhou, China is 1.1°C warmer than that mean.
From September to October, average highs fall by 4.7°C to 22.1°C, and monthly rainfall falls from 80 mm to 50 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
Suzhou, China climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.8°C-2.6°C | -2.6°C | 23 | 4.2 | 10.210 h |
| February | 9.8°C-0.3°C | -0.3°C | 28 | 4.9 | 11.011 h |
| March | 14.8°C4.2°C | 4.2°C | 43 | 6.0 | 12.012 h |
| April | 21.4°C10.2°C | 10.2°C | 48 | 5.9 | 13.013 h |
| May | 26.8°C16.0°C | 16.0°C | 75 | 6.8 | 13.914 h |
| June | 30.6°C20.8°C | 20.8°C | 133 | 7.9 | 14.314 h |
| July | 31.3°C24.0°C | 24.0°C | 245 | 15.1 | 14.214 h |
| August | 30.2°C23.2°C | 23.2°C | 157 | 13.7 | 13.413 h |
| September, selected | 26.8°C18.4°C | 18.4°C | 80 | 7.9 | 12.412 h |
| October | 22.1°C12.3°C | 12.3°C | 50 | 4.8 | 11.411 h |
| November | 15.1°C5.4°C | 5.4°C | 36 | 5.4 | 10.510 h |
| December | 8.7°C-0.7°C | -0.7°C | 20 | 3.8 | 10.010 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
- Suixi in SeptemberChina · 34 kmHigh 26.8°C · Low 18.2°C · 76 mm rain
- Huaibei in SeptemberChina · 41 kmHigh 26.6°C · Low 18.0°C · 76 mm rain
- Tongshan in SeptemberChina · 63 kmHigh 26.5°C · Low 18.1°C · 78 mm rain
- Xuzhou in SeptemberChina · 69 kmHigh 26.5°C · Low 18.1°C · 78 mm rain
- Yunlong in SeptemberChina · 73 kmHigh 26.6°C · Low 18.1°C · 78 mm rain
- Damiao in SeptemberChina · 78 kmHigh 26.5°C · Low 18.0°C · 78 mm rain
- Bengbu in SeptemberChina · 85 kmHigh 26.8°C · Low 19.1°C · 83 mm rain
- Suicheng in SeptemberChina · 93 kmHigh 26.6°C · Low 18.3°C · 89 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 Suzhou) is explained once on the Suzhou, China year overview and on the Sources, method and limits page.