Tonga Climate: Weather by Month and Best Time to Visit
Best months for Tonga: December, January.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 31°C | 19°C | 8 mm | 3 | – | – | 8.1 |
| February | 32°C | 20°C | 18 mm | 5 | – | – | 7.5 |
| March | 31°C | 20°C | 70 mm | 16 | – | – | 6.4 |
| April | 29°C | 20°C | 133 mm | 22 | – | – | 6.1 |
| May | 28°C | 20°C | 147 mm | 26 | – | – | 6.1 |
| June | 27°C | 19°C | 140 mm | 26 | – | – | 6.1 |
| July | 26°C | 19°C | 142 mm | 26 | – | – | 6.1 |
| August | 25°C | 19°C | 171 mm | 26 | – | – | 6.1 |
| September | 26°C | 19°C | 206 mm | 28 | – | – | 6.1 |
| October | 27°C | 19°C | 200 mm | 29 | – | – | 6.1 |
| November | 28°C | 19°C | 70 mm | 14 | – | – | 7.2 |
| December | 30°C | 19°C | 9 mm | 2 | – | – | 8.4 |