Average annual temperature is 17.3 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -1.8 °C
Number of sunny days: 87 days
Number of rainy days: 275 days
Number of snow days: 3 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) | 16.5 | 18.8 | 21.8 | 30.8 | 30.7 | 32.2 | 33.7 | 33.2 | 33.0 | 26.4 | 24.6 | 17.9 |
| Average daytime temperature (°C) | 9.6 | 13.2 | 17.1 | 22.3 | 24.8 | 25.8 | 30.0 | 29.7 | 27.3 | 21.2 | 17.7 | 11.7 |
| Average temperature (°C) | 5.9 | 9.7 | 13.3 | 18.3 | 21.1 | 22.7 | 26.1 | 26.0 | 23.8 | 18.0 | 13.8 | 8.2 |
| Average night temperature (°C) | 2.3 | 6.5 | 9.6 | 14.5 | 17.8 | 20.0 | 22.7 | 22.7 | 20.4 | 15.3 | 10.4 | 4.6 |
| Absolute minimum temperature (°C) | -1.8 | 4.5 | 4.9 | 7.3 | 13.3 | 16.1 | 17.9 | 17.1 | 18.1 | 11.4 | 5.3 | -0.2 |
| 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 | 14.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| 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) | 4.2 | 3.3 | 4.8 | 7.2 | 6.9 | 5.7 | 8.4 | 9.7 | 7.6 | 5.4 | 5.4 | 3.8 |
| Precipitation (mm) | 23 | 47 | 149 | 186 | 246 | 244 | 311 | 188 | 200 | 219 | 94 | 25 |
| Sunny days | 13 | 8 | 3 | 6 | 5 | 6 | 7 | 1 | 9 | 6 | 8 | 15 |
| Rainy days | 15 | 20 | 28 | 24 | 26 | 24 | 24 | 30 | 21 | 25 | 22 | 16 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Helu during the most sunny months:
The largest precipitation sum in Helu is at