Average annual temperature is 11.3 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: -18.5 °C
Number of sunny days: 187 days
Number of rainy days: 169 days
Number of snow days: 9 days
Look at detailed online map of Tonga
* Weather data for Tonga South Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.4 | 11.4 | 20.2 | 23.1 | 28.7 | 30.4 | 32.3 | 32.9 | 26.8 | 20.4 | 21.5 | 13.7 |
| Average daytime temperature (°C) | 1.5 | 5.4 | 13.1 | 15.1 | 20.3 | 24.7 | 27.1 | 27.6 | 23.0 | 17.1 | 9.4 | 3.5 |
| Average temperature (°C) | -2.6 | 0.6 | 7.5 | 10.2 | 15.7 | 20.1 | 23.5 | 23.9 | 19.6 | 12.2 | 4.9 | -0.5 |
| Average night temperature (°C) | -6.0 | -2.9 | 2.8 | 5.7 | 11.8 | 16.3 | 20.7 | 21.1 | 16.8 | 8.3 | 0.9 | -3.7 |
| Absolute minimum temperature (°C) | -18.5 | -7.9 | -6.3 | -1.1 | 4.7 | 12.6 | 16.6 | 18.0 | 11.9 | 2.0 | -9.4 | -14.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 7.5 | 7.4 | 8.8 | 8.6 | 8.9 | 9.6 | 7.8 | 9.2 | 7.1 | 8.6 | 7.7 | 6.8 |
| Precipitation (mm) | 31 | 19 | 58 | 78 | 151 | 220 | 308 | 274 | 246 | 16 | 29 | 137 |
| Sunny days | 25 | 18 | 24 | 14 | 18 | 7 | 3 | 6 | 9 | 20 | 20 | 23 |
| Rainy days | 4 | 4 | 7 | 16 | 13 | 23 | 28 | 25 | 21 | 11 | 9 | 8 |
| Snow days | 2 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The largest precipitation sum in Tonga is at