Average annual temperature is 12.4 °C
Absolute maximum temperature: 31.4 °C
Absolute minimum temperature: -7.5 °C
Number of sunny days: 146 days
Number of rainy days: 209 days
Number of snow days: 10 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) | 13.5 | 12.3 | 21.3 | 27.3 | 27.2 | 28.6 | 31.4 | 31.4 | 28.3 | 20.5 | 20.2 | 16.7 |
| Average daytime temperature (°C) | 6.1 | 6.7 | 13.8 | 17.8 | 19.7 | 23.6 | 27.8 | 27.3 | 21.2 | 16.7 | 11.7 | 6.9 |
| Average temperature (°C) | 1.4 | 3.0 | 8.5 | 12.9 | 15.8 | 19.7 | 23.3 | 22.9 | 18.1 | 12.8 | 7.6 | 2.7 |
| Average night temperature (°C) | -2.7 | -0.4 | 3.5 | 8.3 | 12.6 | 16.4 | 19.6 | 19.2 | 15.3 | 9.6 | 3.6 | -0.8 |
| Absolute minimum temperature (°C) | -7.5 | -3.6 | -1.9 | 1.0 | 6.9 | 10.6 | 15.0 | 14.8 | 11.1 | 4.2 | -1.2 | -7.2 |
| 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) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.0 | 4.1 | 6.8 | 7.2 | 5.2 | 6.7 | 8.8 | 9.6 | 5.5 | 5.4 | 5.0 | 5.4 |
| Precipitation (mm) | 25 | 55 | 58 | 122 | 252 | 115 | 214 | 182 | 366 | 132 | 72 | 50 |
| Sunny days | 22 | 8 | 14 | 16 | 6 | 9 | 11 | 10 | 8 | 12 | 11 | 19 |
| Rainy days | 6 | 15 | 17 | 14 | 25 | 21 | 20 | 21 | 22 | 19 | 19 | 10 |
| Snow days | 3 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Heiwan during the most sunny months:
The largest precipitation sum in Heiwan is at