Average annual temperature is 23.4 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: 6.9 °C
Number of sunny days: 177 days
Number of rainy days: 188 days
Look at detailed online map of Haikou
* Weather data for Haikou Taiwan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 26.5 | 29.3 | 29.1 | 32.5 | 32.8 | 33.7 | 34.2 | 32.6 | 32.4 | 32.1 | 30.7 | 28.1 |
| Average daytime temperature (°C) | 20.2 | 21.1 | 23.7 | 25.9 | 28.5 | 30.7 | 32.1 | 30.7 | 30.5 | 29.3 | 26.9 | 22.3 |
| Average temperature (°C) | 16.5 | 17.0 | 19.4 | 22.5 | 25.3 | 27.8 | 29.0 | 27.9 | 27.6 | 25.7 | 22.5 | 18.8 |
| Average night temperature (°C) | 14.0 | 14.5 | 16.1 | 19.8 | 22.8 | 25.5 | 26.1 | 25.5 | 25.0 | 23.1 | 19.2 | 16.4 |
| Absolute minimum temperature (°C) | 6.9 | 10.9 | 10.6 | 16.2 | 18.8 | 24.2 | 25.0 | 24.0 | 23.1 | 20.8 | 13.5 | 8.5 |
| 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 | 13.3 | 13.6 | 13.5 | 13.0 | 12.3 | 11.6 | 11.0 | 10.7 |
| 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) | 8.7 | 9.1 | 9.6 | 10.3 | 9.6 | 9.7 | 10.7 | 10.1 | 10.1 | 9.3 | 9.6 | 7.9 |
| Precipitation (mm) | 9 | 24 | 57 | 184 | 123 | 325 | 174 | 336 | 223 | 37 | 2 | 40 |
| Sunny days | 22 | 22 | 23 | 18 | 16 | 2 | 5 | 1 | 8 | 18 | 25 | 17 |
| Rainy days | 9 | 6 | 8 | 12 | 15 | 28 | 26 | 30 | 22 | 13 | 5 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haikou is at