Climate averages 1991–2020
Zhangjiagang weather
in August.
A hot, wet month: the 2nd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Zhangjiagang: daytime highs average 30.8°C and nights cool to about 24.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 169 mm of rain on roughly 15 days, which makes August a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 19 min on an average August day.
The nearest other city in this atlas is Jiangyin (27 km away). In August its highs average 31.0°C, about as warm as Zhangjiagang, with 172 mm of rain.
Among the 884 cities listed in China, Zhangjiagang ranks joint 276th of 884 for the warmest August highs and joint 542nd of 884 for the driest August (rainfall, lowest first). The mean August high of those 884 cities is 29.3°C; Zhangjiagang is 1.6°C warmer than that mean.
From August to September, average highs fall by 3.9°C to 27.0°C, and monthly rainfall falls from 169 mm to 87 mm.
The annual picture
August 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
Zhangjiagang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.8°C0.0°C | 0.0°C | 58 | 8.3 | 10.310 h |
| February | 10.0°C1.5°C | 1.5°C | 57 | 8.5 | 11.011 h |
| March | 14.3°C5.3°C | 5.3°C | 82 | 10.7 | 12.012 h |
| April | 20.2°C10.7°C | 10.7°C | 95 | 9.6 | 12.913 h |
| May | 25.1°C16.2°C | 16.2°C | 118 | 9.5 | 13.814 h |
| June | 28.0°C20.6°C | 20.6°C | 244 | 12.8 | 14.214 h |
| July | 31.3°C25.0°C | 25.0°C | 193 | 14.6 | 14.014 h |
| August, selected | 30.8°C24.8°C | 24.8°C | 169 | 14.5 | 13.313 h |
| September | 27.0°C20.3°C | 20.3°C | 87 | 9.3 | 12.412 h |
| October | 22.3°C14.4°C | 14.4°C | 50 | 6.1 | 11.411 h |
| November | 16.6°C8.5°C | 8.5°C | 52 | 7.0 | 10.611 h |
| December | 10.2°C2.2°C | 2.2°C | 38 | 6.1 | 10.110 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
August in nearby cities
- Jiangyin in AugustChina · 27 kmHigh 31.0°C · Low 24.7°C · 172 mm rain
- Changshu in AugustChina · 31 kmHigh 31.3°C · Low 24.8°C · 172 mm rain
- Nantong in AugustChina · 37 kmHigh 30.6°C · Low 24.9°C · 178 mm rain
- Wuxi in AugustChina · 41 kmHigh 31.2°C · Low 25.2°C · 168 mm rain
- Changzhou in AugustChina · 56 kmHigh 31.1°C · Low 24.9°C · 168 mm rain
- Jinsha in AugustChina · 56 kmHigh 30.4°C · Low 24.9°C · 178 mm rain
- Rugao in AugustChina · 56 kmHigh 30.5°C · Low 24.2°C · 178 mm rain
- Taixing in AugustChina · 60 kmHigh 30.7°C · Low 24.5°C · 174 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 Zhangjiagang) is explained once on the Zhangjiagang year overview and on the Sources, method and limits page.