Average annual temperature is 18.1 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -2.6 °C
Number of sunny days: 162 days
Number of rainy days: 202 days
Number of snow days: 1 day
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) | 16.5 | 18.0 | 24.8 | 34.9 | 37.2 | 37.6 | 37.9 | 35.8 | 35.4 | 25.9 | 23.5 | 17.9 |
| Average daytime temperature (°C) | 10.9 | 13.5 | 18.9 | 24.6 | 28.1 | 31.7 | 32.3 | 31.5 | 28.9 | 21.9 | 18.3 | 12.2 |
| Average temperature (°C) | 5.9 | 10.1 | 14.1 | 19.2 | 22.9 | 26.2 | 27.5 | 26.9 | 24.4 | 18.3 | 13.8 | 7.8 |
| Average night temperature (°C) | 1.0 | 6.5 | 9.1 | 13.9 | 18.2 | 21.3 | 23.2 | 23.0 | 20.8 | 15.0 | 9.3 | 3.1 |
| Absolute minimum temperature (°C) | -2.6 | 2.9 | 4.9 | 6.0 | 14.3 | 16.1 | 18.7 | 18.8 | 16.8 | 11.7 | 4.6 | -2.4 |
| 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) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.3 | 12.4 | 11.4 | 10.6 | 10.2 |
| 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) | 5.8 | 3.3 | 5.9 | 7.1 | 6.1 | 6.5 | 8.7 | 8.8 | 6.9 | 3.5 | 4.8 | 4.3 |
| Precipitation (mm) | 4 | 37 | 37 | 68 | 48 | 26 | 231 | 186 | 110 | 53 | 36 | 5 |
| Sunny days | 20 | 12 | 10 | 13 | 15 | 12 | 11 | 8 | 9 | 12 | 17 | 23 |
| Rainy days | 11 | 16 | 21 | 17 | 16 | 18 | 20 | 23 | 21 | 19 | 13 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Heiwan during the most sunny months:
The largest precipitation sum in Heiwan is at