Average annual temperature is 25.3 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: 9.7 °C
Number of sunny days: 99 days
Number of rainy days: 266 days
Look at detailed online map of Hải Nam
* Weather data for Hải Nam Vietnam is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.8 | 29.1 | 35.7 | 36.5 | 37.1 | 37.9 | 39.2 | 37.7 | 35.6 | 31.6 | 29.1 | 27.5 |
| Average daytime temperature (°C) | 19.6 | 22.4 | 25.0 | 28.7 | 31.6 | 34.0 | 34.6 | 32.8 | 30.4 | 27.8 | 25.5 | 21.9 |
| Average temperature (°C) | 17.4 | 20.1 | 22.4 | 26.1 | 28.8 | 30.6 | 31.0 | 29.8 | 27.9 | 25.9 | 23.2 | 19.8 |
| Average night temperature (°C) | 14.5 | 17.9 | 19.7 | 23.5 | 26.0 | 27.9 | 27.8 | 27.2 | 25.4 | 23.9 | 20.6 | 17.3 |
| Absolute minimum temperature (°C) | 9.7 | 13.1 | 15.8 | 19.6 | 22.2 | 25.3 | 25.4 | 25.6 | 23.9 | 22.5 | 16.6 | 11.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.1 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 4.3 | 5.6 | 7.8 | 8.3 | 10.7 | 9.9 | 11.3 | 8.1 | 7.4 | 6.3 | 7.3 | 3.9 |
| Precipitation (mm) | 76 | 67 | 53 | 81 | 108 | 149 | 87 | 130 | 420 | 316 | 310 | 160 |
| Sunny days | 8 | 7 | 12 | 16 | 16 | 9 | 6 | 7 | 1 | 3 | 6 | 8 |
| Rainy days | 23 | 21 | 19 | 14 | 15 | 21 | 25 | 24 | 29 | 28 | 24 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hải Nam during the most sunny months:
The largest precipitation sum in Hải Nam is at