Average annual temperature is 21.2 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 7.6 °C
Number of sunny days: 145 days
Number of rainy days: 220 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) | 26.1 | 27.8 | 31.4 | 34.1 | 34.2 | 31.1 | 32.4 | 30.8 | 32.0 | 29.6 | 27.8 | 25.7 |
| Average daytime temperature (°C) | 22.5 | 25.4 | 27.4 | 30.9 | 29.5 | 28.2 | 28.8 | 28.2 | 29.6 | 27.4 | 25.2 | 22.2 |
| Average temperature (°C) | 15.0 | 17.8 | 19.9 | 23.2 | 23.5 | 24.2 | 24.8 | 24.5 | 24.7 | 22.0 | 18.7 | 16.4 |
| Average night temperature (°C) | 9.3 | 11.9 | 13.9 | 16.7 | 18.8 | 21.2 | 21.8 | 21.9 | 20.8 | 17.9 | 13.7 | 11.7 |
| Absolute minimum temperature (°C) | 7.6 | 9.3 | 11.8 | 13.3 | 16.2 | 19.8 | 20.0 | 20.7 | 19.3 | 14.0 | 10.8 | 8.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 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) | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 | 13.5 | 13.0 | 12.3 | 11.6 | 11.0 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.9 | 10.0 | 10.4 | 10.8 | 10.7 | 8.6 | 8.1 | 7.9 | 9.6 | 9.5 | 9.1 | 8.6 |
| Precipitation (mm) | 0 | 13 | 34 | 32 | 158 | 360 | 283 | 299 | 114 | 166 | 76 | 80 |
| Sunny days | 30 | 21 | 19 | 16 | 5 | 0 | 0 | 0 | 4 | 12 | 24 | 14 |
| Rainy days | 1 | 7 | 12 | 14 | 26 | 30 | 31 | 31 | 26 | 19 | 6 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Helu is at