Average annual temperature is 20.6 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: 4.9 °C
Number of sunny days: 123 days
Number of rainy days: 242 days
Look at detailed online map of Heliwan
* Weather data for Heliwan 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) | 27.0 | 27.3 | 29.1 | 34.0 | 36.1 | 36.0 | 33.0 | 29.8 | 30.7 | 30.9 | 26.3 | 24.5 |
| Average daytime temperature (°C) | 19.9 | 23.1 | 24.2 | 28.9 | 29.8 | 28.3 | 29.0 | 27.8 | 28.3 | 24.1 | 22.5 | 20.4 |
| Average temperature (°C) | 14.6 | 17.2 | 18.1 | 22.2 | 24.0 | 24.1 | 24.7 | 24.1 | 23.8 | 20.4 | 18.0 | 15.9 |
| Average night temperature (°C) | 9.7 | 12.0 | 12.7 | 15.8 | 18.5 | 20.6 | 21.1 | 21.1 | 19.8 | 17.2 | 14.2 | 11.8 |
| Absolute minimum temperature (°C) | 4.9 | 9.3 | 9.5 | 11.2 | 15.9 | 18.7 | 17.7 | 19.3 | 16.9 | 14.0 | 9.9 | 7.9 |
| 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) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.6 | 13.0 | 12.3 | 11.5 | 10.9 | 10.5 |
| 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) | 9.0 | 8.7 | 9.8 | 11.2 | 10.4 | 7.9 | 8.8 | 8.8 | 10.0 | 7.2 | 9.1 | 7.7 |
| Precipitation (mm) | 50 | 52 | 167 | 17 | 96 | 317 | 319 | 207 | 93 | 375 | 69 | 135 |
| Sunny days | 22 | 10 | 13 | 18 | 14 | 4 | 4 | 2 | 7 | 5 | 15 | 9 |
| Rainy days | 9 | 18 | 18 | 12 | 17 | 26 | 27 | 29 | 23 | 26 | 15 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Heliwan is at