Average annual temperature is 11.2 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -18.9 °C
Number of sunny days: 256 days
Number of rainy days: 99 days
Number of snow days: 10 days
Look at detailed online map of Haikou
* Weather data for Haikou 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) | 7.3 | 10.3 | 19.2 | 20.3 | 27.4 | 33.8 | 35.1 | 34.4 | 31.0 | 26.7 | 23.9 | 14.2 |
| Average daytime temperature (°C) | -0.3 | 3.5 | 10.6 | 16.3 | 22.0 | 27.3 | 29.2 | 28.8 | 26.7 | 20.3 | 6.6 | -1.2 |
| Average temperature (°C) | -5.0 | -1.2 | 5.2 | 11.2 | 17.5 | 23.0 | 25.6 | 24.9 | 21.7 | 14.8 | 1.9 | -5.7 |
| Average night temperature (°C) | -9.2 | -4.7 | 0.3 | 6.9 | 13.3 | 18.9 | 22.5 | 21.3 | 17.0 | 10.0 | -2.2 | -9.5 |
| Absolute minimum temperature (°C) | -18.2 | -7.8 | -6.3 | 1.2 | 8.8 | 15.1 | 18.6 | 16.1 | 12.3 | 6.1 | -8.0 | -18.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 8.3 | 9.9 | 8.9 | 9.6 | 11.2 | 8.6 | 10.2 | 9.3 | 8.9 | 7.2 | 6.8 |
| Precipitation (mm) | 4 | 2 | 11 | 74 | 46 | 9 | 200 | 98 | 23 | 25 | 27 | 6 |
| Sunny days | 30 | 25 | 25 | 16 | 22 | 19 | 9 | 18 | 20 | 24 | 22 | 26 |
| Rainy days | 1 | 1 | 5 | 14 | 9 | 11 | 22 | 13 | 10 | 7 | 6 | 0 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 |
The best time to visit Haikou during the most sunny months:
The largest precipitation sum in Haikou is at