Average annual temperature is 14.0 °C
Absolute maximum temperature: 31.2 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 73 days
Number of rainy days: 287 days
Number of snow days: 5 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) | 15.4 | 17.0 | 21.3 | 31.2 | 30.6 | 30.8 | 31.2 | 29.1 | 29.8 | 23.2 | 22.1 | 24.5 |
| Average daytime temperature (°C) | 6.5 | 10.2 | 14.2 | 19.5 | 21.7 | 22.8 | 26.5 | 25.7 | 23.7 | 17.5 | 15.3 | 10.1 |
| Average temperature (°C) | 2.7 | 6.5 | 10.3 | 15.0 | 17.6 | 19.4 | 22.4 | 21.9 | 19.7 | 14.4 | 11.4 | 5.9 |
| Average night temperature (°C) | -0.4 | 3.7 | 6.9 | 11.0 | 14.1 | 16.5 | 18.7 | 18.7 | 16.3 | 11.6 | 8.2 | 2.6 |
| Absolute minimum temperature (°C) | -5.5 | 0.4 | 0.2 | 4.3 | 9.5 | 13.6 | 14.2 | 13.9 | 13.1 | 6.2 | 1.7 | -4.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 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) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.4 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 4.5 | 3.2 | 4.3 | 7.7 | 6.4 | 5.8 | 8.7 | 8.5 | 7.2 | 4.3 | 5.2 | 4.6 |
| Precipitation (mm) | 17 | 39 | 116 | 122 | 189 | 132 | 360 | 187 | 142 | 138 | 97 | 27 |
| Sunny days | 19 | 5 | 3 | 5 | 6 | 2 | 4 | 2 | 4 | 5 | 6 | 12 |
| Rainy days | 7 | 23 | 28 | 25 | 25 | 28 | 27 | 29 | 26 | 26 | 24 | 19 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Heiyan during the most sunny months:
The largest precipitation sum in Heiyan is at