Climate averages 1991–2020
Nanjing weather
in July.
A hot, very wet month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Nanjing: daytime highs average 31.4°C and nights cool to about 24.7°C. By daytime temperature it is the warmest month of the year.
Expect about 210 mm of rain on roughly 15 days, which makes July a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 02 min on an average July day.
The nearest other city in this atlas is Zhenzhou (44 km away). In July its highs average 31.3°C, about as warm as Nanjing, with 233 mm of rain.
Among the 884 cities listed in China, Nanjing ranks joint 292nd of 884 for the warmest July highs and joint 586th of 884 for the driest July (rainfall, lowest first). The mean July high of those 884 cities is 30.0°C; Nanjing is 1.3°C warmer than that mean.
From July to August, average highs fall by 0.5°C to 30.9°C, and monthly rainfall falls from 210 mm to 174 mm.
The annual picture
July 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
Nanjing climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.6°C-1.0°C | -1.0°C | 55 | 8.0 | 10.310 h |
| February | 10.3°C1.0°C | 1.0°C | 56 | 8.5 | 11.011 h |
| March | 15.0°C5.1°C | 5.1°C | 80 | 10.0 | 12.012 h |
| April | 21.0°C10.8°C | 10.8°C | 94 | 9.0 | 12.913 h |
| May | 25.7°C16.3°C | 16.3°C | 121 | 9.8 | 13.814 h |
| June | 28.6°C20.6°C | 20.6°C | 222 | 11.9 | 14.214 h |
| July, selected | 31.4°C24.7°C | 24.7°C | 210 | 15.1 | 14.014 h |
| August | 30.9°C24.4°C | 24.4°C | 174 | 14.3 | 13.313 h |
| September | 27.1°C19.7°C | 19.7°C | 81 | 8.3 | 12.412 h |
| October | 22.3°C13.7°C | 13.7°C | 54 | 6.3 | 11.411 h |
| November | 16.3°C7.3°C | 7.3°C | 53 | 6.8 | 10.611 h |
| December | 9.9°C1.1°C | 1.1°C | 34 | 5.6 | 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
July in nearby cities
- Zhenzhou in JulyChina · 44 kmHigh 31.3°C · Low 24.8°C · 233 mm rain
- Ma’anshan in JulyChina · 49 kmHigh 31.5°C · Low 25.0°C · 201 mm rain
- Chuzhou in JulyChina · 54 kmHigh 31.3°C · Low 24.5°C · 224 mm rain
- Zhenjiang in JulyChina · 66 kmHigh 31.2°C · Low 24.7°C · 231 mm rain
- Yangzhou in JulyChina · 72 kmHigh 31.2°C · Low 24.6°C · 234 mm rain
- Xiannü in JulyChina · 84 kmHigh 31.1°C · Low 24.5°C · 234 mm rain
- Wuhu in JulyChina · 85 kmHigh 31.8°C · Low 25.3°C · 195 mm rain
- Licheng, China in JulyChina · 97 kmHigh 31.8°C · Low 25.3°C · 191 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 Nanjing) is explained once on the Nanjing year overview and on the Sources, method and limits page.