Average annual temperature is 14.9 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: -9.5 °C
Number of sunny days: 242 days
Number of rainy days: 122 days
Number of snow days: 1 day
Look at detailed online map of Heili
* Weather data for Heili 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) | 12.7 | 16.3 | 26.3 | 30.7 | 32.8 | 38.5 | 37.1 | 36.4 | 33.7 | 24.5 | 26.0 | 19.5 |
| Average daytime temperature (°C) | 6.8 | 10.6 | 18.7 | 21.0 | 24.8 | 30.5 | 32.8 | 31.2 | 27.6 | 21.1 | 14.2 | 7.6 |
| Average temperature (°C) | 0.6 | 4.8 | 11.7 | 15.2 | 19.8 | 24.6 | 27.3 | 26.3 | 22.7 | 15.5 | 8.1 | 1.4 |
| Average night temperature (°C) | -4.5 | -0.5 | 4.8 | 9.6 | 15.0 | 19.1 | 22.6 | 22.0 | 18.5 | 10.8 | 2.7 | -3.6 |
| Absolute minimum temperature (°C) | -8.3 | -4.4 | -1.2 | 3.6 | 8.6 | 13.7 | 17.8 | 16.3 | 12.4 | 6.2 | -4.9 | -9.5 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 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) | 7.2 | 6.6 | 8.6 | 7.5 | 6.3 | 8.6 | 9.3 | 9.2 | 6.9 | 6.9 | 7.5 | 7.1 |
| Precipitation (mm) | 2 | 14 | 26 | 74 | 117 | 103 | 100 | 154 | 55 | 52 | 12 | 19 |
| Sunny days | 28 | 20 | 24 | 17 | 11 | 20 | 22 | 16 | 13 | 22 | 22 | 27 |
| Rainy days | 2 | 8 | 7 | 13 | 20 | 10 | 9 | 15 | 17 | 9 | 8 | 4 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Heili is at