Average annual temperature is 18.5 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 122 days
Number of rainy days: 243 days
Look at detailed online map of Jiajianyu
* Weather data for Jiajianyu China is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 22.9 | 23.9 | 27.7 | 29.2 | 32.9 | 31.6 | 35.1 | 33.9 | 30.6 | 31.2 | 27.5 | 25.9 |
| Average daytime temperature (°C) | 15.0 | 17.9 | 20.4 | 23.6 | 26.8 | 29.1 | 31.0 | 29.9 | 28.7 | 24.6 | 20.8 | 16.9 |
| Average temperature (°C) | 9.7 | 12.1 | 14.9 | 18.1 | 21.6 | 24.0 | 25.8 | 24.8 | 23.9 | 19.7 | 15.2 | 11.4 |
| Average night temperature (°C) | 5.2 | 7.4 | 10.5 | 14.2 | 18.0 | 20.9 | 22.1 | 21.8 | 20.8 | 16.2 | 10.7 | 7.0 |
| Absolute minimum temperature (°C) | -1.7 | 0.3 | 3.8 | 7.2 | 11.7 | 17.8 | 21.1 | 20.0 | 19.4 | 10.4 | 4.0 | -3.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.6 | 13.0 | 12.3 | 11.6 | 10.9 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.0 | 6.2 | 5.9 | 6.6 | 7.5 | 7.7 | 9.6 | 8.1 | 8.3 | 6.2 | 7.8 | 6.7 |
| Precipitation (mm) | 58 | 77 | 181 | 124 | 112 | 272 | 192 | 224 | 192 | 75 | 25 | 24 |
| Sunny days | 17 | 12 | 14 | 8 | 6 | 1 | 7 | 2 | 3 | 15 | 20 | 17 |
| Rainy days | 14 | 16 | 17 | 22 | 25 | 29 | 24 | 29 | 27 | 16 | 10 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Jiajianyu during the most sunny months:
The largest precipitation sum in Jiajianyu is at