Average annual temperature is 18.3 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: 1.7 °C
Number of sunny days: 153 days
Number of rainy days: 212 days
Look at detailed online map of Haiwan
* Weather data for Haiwan 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) | 24.2 | 25.1 | 27.5 | 32.2 | 34.9 | 35.4 | 30.8 | 28.1 | 28.7 | 28.2 | 26.0 | 22.5 |
| Average daytime temperature (°C) | 16.6 | 20.6 | 23.6 | 28.3 | 29.3 | 27.5 | 27.3 | 25.8 | 26.3 | 23.3 | 21.3 | 18.5 |
| Average temperature (°C) | 10.5 | 14.5 | 17.3 | 22.0 | 23.2 | 22.3 | 22.1 | 21.0 | 20.8 | 18.1 | 15.1 | 12.5 |
| Average night temperature (°C) | 4.5 | 8.6 | 10.5 | 15.1 | 17.1 | 17.8 | 17.7 | 17.5 | 15.9 | 13.5 | 9.3 | 6.9 |
| Absolute minimum temperature (°C) | 1.7 | 5.9 | 7.1 | 10.7 | 13.9 | 14.5 | 15.9 | 15.7 | 13.5 | 11.1 | 4.9 | 3.5 |
| 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 | 13.4 | 13.7 | 13.5 | 13.0 | 12.3 | 11.6 | 10.9 | 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) | 8.3 | 9.0 | 10.1 | 11.5 | 10.8 | 10.2 | 10.0 | 9.3 | 10.2 | 8.3 | 9.0 | 7.6 |
| Precipitation (mm) | 7 | 9 | 13 | 15 | 35 | 208 | 134 | 374 | 52 | 57 | 28 | 12 |
| Sunny days | 25 | 18 | 15 | 21 | 17 | 2 | 4 | 2 | 6 | 5 | 19 | 19 |
| Rainy days | 6 | 10 | 16 | 9 | 14 | 28 | 27 | 29 | 24 | 26 | 11 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haiwan is at