Average annual temperature is 14.1 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: -8.9 °C
Number of sunny days: 207 days
Number of rainy days: 147 days
Number of snow days: 11 days
Look at detailed online map of Heyu
* Weather data for Heyu 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) | 17.4 | 16.1 | 25.9 | 29.1 | 31.3 | 32.4 | 37.7 | 34.8 | 30.3 | 26.3 | 26.1 | 22.3 |
| Average daytime temperature (°C) | 7.5 | 8.7 | 17.2 | 19.4 | 23.2 | 27.4 | 31.5 | 29.5 | 24.7 | 20.7 | 13.6 | 7.9 |
| Average temperature (°C) | 2.0 | 4.0 | 10.9 | 14.0 | 18.3 | 22.5 | 26.1 | 24.6 | 20.2 | 15.3 | 8.2 | 2.2 |
| Average night temperature (°C) | -2.7 | -0.1 | 4.9 | 9.0 | 13.8 | 17.9 | 21.1 | 20.3 | 16.4 | 10.7 | 3.6 | -2.1 |
| Absolute minimum temperature (°C) | -8.9 | -3.8 | -2.4 | 1.8 | 6.1 | 12.9 | 16.4 | 14.0 | 12.2 | 6.2 | -2.5 | -8.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 5.8 | 8.5 | 7.7 | 6.8 | 8.8 | 10.2 | 9.8 | 6.7 | 7.0 | 6.8 | 7.2 |
| Precipitation (mm) | 8 | 32 | 25 | 79 | 98 | 125 | 79 | 157 | 133 | 67 | 24 | 33 |
| Sunny days | 27 | 13 | 25 | 18 | 11 | 14 | 17 | 13 | 9 | 17 | 22 | 21 |
| Rainy days | 3 | 11 | 5 | 12 | 20 | 16 | 14 | 18 | 21 | 14 | 7 | 6 |
| Snow days | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
The best time to visit Heyu during the most sunny months:
The largest precipitation sum in Heyu is at