Climate averages 1991–2020
Zhangjiagang weather
in May.
A warm, wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Zhangjiagang: daytime highs average 25.1°C and nights cool to about 16.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 118 mm of rain on roughly 10 days, which makes May a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 46 min on an average May day.
The nearest other city in this atlas is Jiangyin (27 km away). In May its highs average 25.4°C, about as warm as Zhangjiagang, with 115 mm of rain.
Among the 884 cities listed in China, Zhangjiagang ranks joint 562nd of 884 for the warmest May highs and joint 518th of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Zhangjiagang is 0.1°C cooler than that mean.
From May to June, average highs rise by 2.9°C to 28.0°C, and monthly rainfall rises from 118 mm to 244 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Jiangyin in MayChina · 27 kmHigh 25.4°C · Low 16.2°C · 115 mm rain
- Changshu in MayChina · 31 kmHigh 25.5°C · Low 16.0°C · 118 mm rain
- Nantong in MayChina · 37 kmHigh 24.7°C · Low 16.1°C · 113 mm rain
- Wuxi in MayChina · 41 kmHigh 25.2°C · Low 16.8°C · 134 mm rain
- Changzhou in MayChina · 56 kmHigh 25.4°C · Low 16.6°C · 121 mm rain
- Jinsha in MayChina · 56 kmHigh 24.4°C · Low 15.8°C · 111 mm rain
- Rugao in MayChina · 56 kmHigh 25.0°C · Low 15.3°C · 109 mm rain
- Taixing in MayChina · 60 kmHigh 25.4°C · Low 16.1°C · 111 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.