Climate and Average Weather in Tonga
Tonga has an equatorial climate with a hot and wet season from December to April with temperatures rising up to 33°C. Most of the country's 1600 mm average of annual rain usually falls during this humid season, which is also cyclone season. Luckily big cyclones only occur every 10-15 years.Temperatures in Tonga are fairly constant. During the day the thermometer goes towards 30°C throughout the year. In the dry period May to October the temperature is a few degrees lower with daytime averages of 26°C. Due to the warm sea water, temperatures drop only a few degrees at night.
Are you interested in more detailed weather and climate information for various cities in Tonga?
Please select the city you plan to visit, or one closest to your destination. For each selected city, you will see the following graphs:
1. Yearly average minimum and maximum temperatures
2. Monthly averages of precipitation throughout the year (rainfall, snow etc)
3. Monthly average hours of sunshine throughout the year
Additionally, some pages provide historical weather data such as humidity, wind speed, and water temperature.