Average annual temperature is 23.3 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: 7.8 °C
Number of sunny days: 182 days
Number of rainy days: 183 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) | 24.6 | 25.1 | 27.0 | 30.6 | 33.4 | 31.7 | 32.4 | 33.5 | 32.3 | 30.6 | 28.0 | 24.8 |
| Average daytime temperature (°C) | 18.9 | 19.2 | 22.3 | 24.9 | 27.8 | 30.1 | 30.3 | 30.1 | 29.8 | 27.1 | 24.1 | 20.5 |
| Average temperature (°C) | 16.3 | 16.5 | 19.1 | 22.0 | 25.0 | 27.9 | 29.0 | 28.6 | 28.1 | 25.4 | 22.3 | 18.9 |
| Average night temperature (°C) | 14.2 | 14.7 | 16.6 | 19.5 | 22.7 | 26.0 | 27.7 | 27.0 | 26.4 | 24.0 | 20.7 | 17.5 |
| Absolute minimum temperature (°C) | 7.8 | 11.6 | 9.9 | 16.3 | 19.6 | 23.9 | 25.6 | 24.8 | 24.4 | 20.7 | 16.6 | 10.8 |
| 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 | 13.7 | 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) | 6.9 | 7.1 | 8.7 | 9.4 | 9.6 | 9.8 | 11.1 | 10.4 | 10.2 | 8.8 | 9.1 | 5.8 |
| Precipitation (mm) | 18 | 73 | 52 | 111 | 182 | 153 | 62 | 111 | 139 | 46 | 21 | 44 |
| Sunny days | 17 | 17 | 18 | 14 | 17 | 6 | 16 | 10 | 17 | 18 | 22 | 10 |
| Rainy days | 14 | 11 | 13 | 16 | 14 | 24 | 15 | 21 | 13 | 13 | 8 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Haikou is at