Average annual temperature is 10.8 °C
Absolute maximum temperature: 30.9 °C
Absolute minimum temperature: -9.3 °C
Number of sunny days: 152 days
Number of rainy days: 190 days
Number of snow days: 23 days
Look at detailed online map of Heiwan
* Weather data for Heiwan 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) | 10.6 | 11.0 | 17.1 | 24.5 | 24.9 | 29.0 | 30.9 | 29.1 | 26.8 | 18.8 | 17.8 | 13.4 |
| Average daytime temperature (°C) | 3.6 | 5.4 | 12.0 | 15.6 | 18.8 | 23.8 | 26.9 | 25.9 | 21.4 | 15.7 | 11.4 | 6.1 |
| Average temperature (°C) | -0.9 | 2.1 | 6.6 | 10.4 | 14.4 | 18.7 | 21.7 | 21.0 | 17.1 | 11.4 | 6.2 | 0.6 |
| Average night temperature (°C) | -5.0 | -1.0 | 1.4 | 5.5 | 10.2 | 13.9 | 17.0 | 16.8 | 13.8 | 8.0 | 1.4 | -4.0 |
| Absolute minimum temperature (°C) | -9.3 | -5.8 | -2.7 | -1.3 | 5.2 | 10.2 | 13.5 | 11.6 | 9.1 | 3.5 | -3.6 | -8.0 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.5 | 4.2 | 6.8 | 7.8 | 6.5 | 7.4 | 9.6 | 9.8 | 6.3 | 5.4 | 6.6 | 6.1 |
| Precipitation (mm) | 8 | 25 | 44 | 73 | 97 | 72 | 134 | 141 | 147 | 66 | 13 | 14 |
| Sunny days | 20 | 11 | 13 | 14 | 10 | 16 | 12 | 10 | 6 | 9 | 14 | 17 |
| Rainy days | 2 | 9 | 18 | 16 | 21 | 14 | 19 | 21 | 24 | 22 | 14 | 10 |
| Snow days | 9 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The best time to visit Heiwan during the most sunny months:
The largest precipitation sum in Heiwan is at