Average annual temperature is 15.4 °C
Absolute maximum temperature: 29.0 °C
Absolute minimum temperature: 1.7 °C
Number of sunny days: 119 days
Number of rainy days: 246 days
Look at detailed online map of Heiyan
* Weather data for Heiyan 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) | 21.0 | 21.5 | 23.1 | 26.8 | 29.0 | 28.4 | 26.0 | 23.1 | 24.2 | 22.6 | 19.9 | 18.7 |
| Average daytime temperature (°C) | 16.2 | 18.6 | 19.6 | 22.9 | 23.0 | 23.3 | 22.7 | 21.8 | 22.2 | 19.8 | 17.8 | 14.9 |
| Average temperature (°C) | 10.2 | 12.5 | 13.6 | 16.8 | 17.4 | 18.5 | 18.7 | 18.1 | 18.6 | 16.3 | 13.2 | 10.6 |
| Average night temperature (°C) | 5.3 | 7.3 | 8.4 | 11.6 | 12.5 | 14.9 | 15.7 | 15.7 | 15.4 | 13.4 | 9.4 | 7.0 |
| Absolute minimum temperature (°C) | 1.7 | 4.1 | 6.7 | 6.9 | 9.5 | 13.4 | 14.4 | 14.3 | 13.6 | 10.7 | 6.9 | 4.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 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) | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 | 13.5 | 13.0 | 12.3 | 11.6 | 11.0 | 10.7 |
| 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) | 10.0 | 9.8 | 10.6 | 11.4 | 11.2 | 10.5 | 9.3 | 8.2 | 10.5 | 9.3 | 9.1 | 8.1 |
| Precipitation (mm) | 6 | 28 | 121 | 138 | 135 | 299 | 286 | 278 | 142 | 159 | 64 | 124 |
| Sunny days | 26 | 17 | 14 | 16 | 10 | 0 | 2 | 0 | 1 | 5 | 16 | 12 |
| Rainy days | 5 | 11 | 17 | 14 | 21 | 30 | 29 | 31 | 29 | 26 | 14 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Heiyan is at