Average annual temperature is 16.7 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: 0.6 °C
Number of sunny days: 208 days
Number of rainy days: 157 days
Look at detailed online map of Hainan
* Weather data for Hainan 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) | 22.8 | 24.6 | 24.6 | 30.1 | 34.3 | 35.4 | 30.7 | 27.4 | 26.9 | 26.5 | 22.0 | 20.6 |
| Average daytime temperature (°C) | 15.5 | 19.1 | 21.2 | 26.2 | 28.1 | 26.1 | 26.3 | 24.1 | 24.2 | 20.0 | 17.7 | 16.7 |
| Average temperature (°C) | 9.1 | 12.6 | 14.3 | 19.0 | 21.5 | 20.9 | 21.6 | 20.5 | 19.9 | 16.3 | 13.0 | 11.2 |
| Average night temperature (°C) | 3.8 | 6.4 | 8.0 | 11.5 | 15.3 | 16.8 | 17.9 | 17.4 | 16.5 | 13.4 | 9.2 | 6.8 |
| Absolute minimum temperature (°C) | 0.6 | 4.4 | 4.1 | 7.5 | 12.1 | 12.8 | 15.1 | 15.0 | 13.5 | 10.3 | 6.5 | 3.8 |
| 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) | 10.6 | 11.2 | 12.0 | 12.8 | 13.5 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.4 |
| 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) | 8.8 | 9.5 | 10.3 | 11.3 | 10.9 | 8.6 | 8.9 | 8.2 | 9.6 | 7.7 | 9.3 | 8.5 |
| Precipitation (mm) | 0 | 1 | 2 | 2 | 36 | 201 | 290 | 559 | 216 | 91 | 24 | 1 |
| Sunny days | 31 | 26 | 25 | 25 | 23 | 7 | 6 | 0 | 6 | 10 | 23 | 26 |
| Rainy days | 0 | 2 | 6 | 5 | 8 | 23 | 25 | 31 | 24 | 21 | 7 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hainan is at