The weather in Tonga in May is very hot. The average temperatures are between 26°C and 27°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Tonga during the month of May. 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 Tonga in May 2025.
If you’re planning to visit Tonga in the near future, we highly recommend that you review the 14 day weather forecast for Tonga before you arrive.
Temperatures
27° / 26°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
218
mm
Sun Hours
10.1
Hrs
