The climate of Tonga, city by city
This page covers the climate normals available for Tonga: temperature, rainfall and how the climate changed between 1940 and 2025, computed from ERA5 reanalysis data.
+0.7 °C since 1940
Frequently asked questions
What is the hottest city in Tonga?
The hottest city in Tonga is Nuku'alofa, with an average annual temperature of 24.0 °C.
What is the coldest city in Tonga?
The coldest city in Tonga is Nuku'alofa, with an average annual temperature of 24.0 °C.
What is the wettest city in Tonga?
The wettest city in Tonga is Nuku'alofa, with 1,598 mm of precipitation per year.
Has the climate of Tonga warmed?
Based on its largest cities, Tonga warmed by +0.7 °C between 1940 and 2025.