Average annual temperature is 12.6 °C
Absolute maximum temperature: 28.6 °C
Absolute minimum temperature: -6.9 °C
Number of sunny days: 79 days
Number of rainy days: 280 days
Number of snow days: 6 days
Look at detailed online map of Heli
* Weather data for Heli 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) | 15.1 | 12.5 | 17.7 | 25.3 | 26.3 | 26.9 | 27.8 | 27.6 | 28.6 | 23.2 | 18.9 | 20.0 |
| Average daytime temperature (°C) | 5.8 | 7.2 | 12.7 | 17.3 | 20.6 | 22.1 | 24.9 | 24.7 | 23.2 | 16.9 | 12.8 | 7.7 |
| Average temperature (°C) | 2.1 | 3.7 | 8.6 | 13.1 | 16.7 | 18.4 | 21.0 | 20.8 | 19.0 | 13.5 | 9.2 | 4.2 |
| Average night temperature (°C) | -1.9 | 0.6 | 5.0 | 9.4 | 13.1 | 15.2 | 17.7 | 17.5 | 15.6 | 10.5 | 5.5 | 0.6 |
| Absolute minimum temperature (°C) | -6.9 | -2.5 | 1.8 | 4.7 | 6.9 | 9.7 | 13.7 | 14.0 | 11.6 | 7.0 | -1.0 | -6.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 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) | 4.4 | 2.2 | 4.1 | 6.1 | 6.4 | 5.5 | 7.5 | 9.0 | 7.8 | 4.7 | 4.9 | 3.8 |
| Precipitation (mm) | 29 | 86 | 179 | 171 | 207 | 327 | 264 | 116 | 259 | 159 | 58 | 42 |
| Sunny days | 15 | 3 | 3 | 5 | 4 | 6 | 3 | 1 | 7 | 7 | 10 | 15 |
| Rainy days | 10 | 25 | 28 | 25 | 27 | 24 | 28 | 30 | 23 | 24 | 20 | 16 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Heli during the most sunny months:
The largest precipitation sum in Heli is at