Average annual temperature is 12.1 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -15.5 °C
Number of sunny days: 246 days
Number of rainy days: 106 days
Number of snow days: 13 days
Look at detailed online map of Helu
* Weather data for Helu 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) | 12.0 | 13.1 | 22.8 | 29.4 | 30.6 | 33.0 | 35.5 | 32.8 | 30.5 | 22.8 | 23.7 | 17.6 |
| Average daytime temperature (°C) | 3.9 | 7.6 | 15.7 | 18.1 | 22.9 | 27.4 | 30.7 | 28.8 | 24.9 | 19.1 | 10.8 | 3.2 |
| Average temperature (°C) | -1.6 | 1.9 | 8.9 | 12.1 | 17.4 | 21.7 | 25.2 | 23.7 | 19.5 | 12.8 | 4.6 | -2.1 |
| Average night temperature (°C) | -6.5 | -2.8 | 2.5 | 6.7 | 12.6 | 16.5 | 20.2 | 19.1 | 15.1 | 7.8 | -0.2 | -6.6 |
| Absolute minimum temperature (°C) | -15.5 | -6.3 | -3.6 | -1.1 | 4.6 | 10.7 | 15.9 | 12.1 | 8.2 | 2.8 | -6.3 | -15.5 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.9 | 7.6 | 9.0 | 8.1 | 7.6 | 10.0 | 10.3 | 9.9 | 7.9 | 7.8 | 8.0 | 7.5 |
| Precipitation (mm) | 7 | 8 | 15 | 73 | 78 | 46 | 59 | 88 | 65 | 15 | 15 | 18 |
| Sunny days | 29 | 20 | 24 | 18 | 15 | 19 | 17 | 16 | 13 | 24 | 27 | 24 |
| Rainy days | 0 | 3 | 5 | 12 | 16 | 11 | 14 | 15 | 17 | 7 | 2 | 4 |
| Snow days | 2 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The largest precipitation sum in Helu is at