Average annual temperature is 17.0 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -3.7 °C
Number of sunny days: 110 days
Number of rainy days: 253 days
Number of snow days: 2 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) | 22.6 | 17.0 | 23.4 | 29.0 | 31.8 | 31.8 | 33.6 | 32.2 | 33.3 | 28.4 | 25.7 | 24.2 |
| Average daytime temperature (°C) | 11.1 | 10.2 | 16.3 | 21.4 | 25.1 | 27.7 | 30.9 | 29.5 | 27.9 | 21.6 | 17.0 | 11.5 |
| Average temperature (°C) | 6.8 | 7.1 | 12.2 | 17.1 | 21.2 | 24.1 | 26.9 | 25.7 | 23.7 | 18.1 | 13.2 | 7.6 |
| Average night temperature (°C) | 2.2 | 4.3 | 7.9 | 13.2 | 17.3 | 20.6 | 23.2 | 22.4 | 20.1 | 14.6 | 9.5 | 3.1 |
| Absolute minimum temperature (°C) | -3.2 | -0.8 | 2.5 | 6.7 | 11.8 | 17.3 | 19.8 | 17.7 | 16.6 | 11.0 | 3.1 | -3.7 |
| 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) | 5.2 | 2.9 | 4.6 | 6.4 | 6.2 | 6.4 | 9.2 | 9.6 | 7.7 | 5.7 | 5.4 | 5.0 |
| Precipitation (mm) | 14 | 133 | 179 | 228 | 198 | 245 | 159 | 260 | 55 | 60 | 139 | 39 |
| Sunny days | 22 | 6 | 7 | 7 | 4 | 3 | 3 | 7 | 9 | 13 | 12 | 17 |
| Rainy days | 7 | 22 | 24 | 23 | 27 | 27 | 28 | 24 | 21 | 18 | 18 | 14 |
| Snow days | 2 | 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