Average annual temperature is 6.4 °C
Absolute maximum temperature: 28.5 °C
Absolute minimum temperature: -26.6 °C
Number of sunny days: 216 days
Number of rainy days: 121 days
Number of snow days: 28 days
Look at detailed online map of Hai’an
* Weather data for Hai’an 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) | 8.3 | 6.6 | 14.5 | 22.6 | 24.2 | 26.3 | 28.5 | 27.0 | 23.3 | 17.4 | 18.1 | 9.0 |
| Average daytime temperature (°C) | -3.1 | 0.9 | 8.4 | 9.8 | 16.3 | 22.2 | 24.0 | 22.6 | 18.3 | 13.2 | 3.5 | -3.8 |
| Average temperature (°C) | -7.5 | -3.9 | 3.2 | 5.0 | 11.5 | 17.2 | 19.1 | 18.0 | 13.7 | 8.2 | -1.0 | -7.7 |
| Average night temperature (°C) | -12.3 | -9.2 | -1.8 | 0.5 | 7.5 | 12.4 | 14.7 | 13.8 | 9.6 | 3.9 | -5.1 | -12.2 |
| Absolute minimum temperature (°C) | -26.6 | -16.6 | -11.4 | -9.3 | 1.2 | 8.8 | 10.6 | 8.3 | 3.2 | 0.2 | -13.6 | -25.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.4 | 9.2 | 7.7 | 7.3 | 11.0 | 10.0 | 9.9 | 7.7 | 8.2 | 8.0 | 7.3 |
| Precipitation (mm) | 7 | 19 | 5 | 137 | 93 | 38 | 104 | 115 | 67 | 24 | 18 | 25 |
| Sunny days | 28 | 16 | 23 | 14 | 10 | 18 | 16 | 9 | 10 | 24 | 23 | 25 |
| Rainy days | 1 | 1 | 4 | 11 | 21 | 12 | 15 | 22 | 20 | 7 | 4 | 3 |
| Snow days | 2 | 11 | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 |
The best time to visit Hai’an during the most sunny months:
The largest precipitation sum in Hai’an is at