Average annual temperature is 9.5 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -26.0 °C
Number of sunny days: 222 days
Number of rainy days: 126 days
Number of snow days: 17 days
Look at detailed online map of Helan
* Weather data for Helan 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) | 5.5 | 11.1 | 21.4 | 22.5 | 28.3 | 33.3 | 33.8 | 32.2 | 29.9 | 23.5 | 20.9 | 10.2 |
| Average daytime temperature (°C) | -3.0 | 2.5 | 10.7 | 14.9 | 22.3 | 27.3 | 29.1 | 27.5 | 24.9 | 17.5 | 3.8 | -4.3 |
| Average temperature (°C) | -7.6 | -2.7 | 4.4 | 9.4 | 16.7 | 21.7 | 24.8 | 23.4 | 19.7 | 12.6 | -0.4 | -8.3 |
| Average night temperature (°C) | -12.3 | -6.8 | -0.3 | 4.4 | 11.8 | 16.9 | 21.4 | 19.8 | 15.0 | 8.5 | -4.5 | -13.3 |
| Absolute minimum temperature (°C) | -22.8 | -12.2 | -7.4 | -3.0 | 6.8 | 11.9 | 18.0 | 15.0 | 9.5 | 1.9 | -11.9 | -26.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 8.2 | 9.7 | 8.5 | 9.9 | 11.2 | 9.0 | 9.0 | 9.6 | 8.5 | 6.4 | 5.7 |
| Precipitation (mm) | 6 | 5 | 8 | 71 | 59 | 127 | 185 | 168 | 27 | 49 | 88 | 23 |
| Sunny days | 26 | 25 | 24 | 18 | 22 | 12 | 10 | 8 | 20 | 18 | 18 | 21 |
| Rainy days | 3 | 2 | 6 | 12 | 9 | 18 | 21 | 23 | 10 | 13 | 7 | 2 |
| Snow days | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 8 |
The best time to visit Helan during the most sunny months:
The largest precipitation sum in Helan is at