The weather in Tongatapu in August is hot. The average temperatures are between 21°C and 23°C.
You can expect about 3 to 8 days of rain in Tongatapu during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Tongatapu in August 2025.
If you’re planning to visit Tongatapu in the near future, we highly recommend that you review the 14 day weather forecast for Tongatapu before you arrive.
Temperatures
23° / 21°
Rainy Days
4
Snowy Days
0
Dry Days
27
Rainfall
122
mm
Sun Hours
9.4
Hrs
