Tonga weather

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Below are the temperatures expected today at popular destinations in Tonga. Select a destination to compare today's forecast with average weather conditions.

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The weather guide for Tonga shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Tonga?

The hottest time of year in Nuku'alofa, Tonga is normally February. Expect maximum daytime temperatures to reach 29°C with high heat and humidity.

Which month has the most rain in Tonga?

In terms of rainfall, March is usually the wettest month in Nuku'alofa, Tonga with 263mm on average. There are normally 18 days in March with some rain.

When is the sea warmest in Tonga?

The sea is usually at its warmest in Nuku'alofa, Tonga in February when the water temperature reaches 27°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Tonga weather with the USA

Below the Tonga weather chart shows average maximum daytime temperature for Tonga (Nuku'alofa) and the USA (Washington).

Maximum daytime temperature (°C)

Tonga (Nuku'alofa)
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Tonga weather overview

Tonga comprises three groups of islands situated southeast of Fiji. These islands share a tropical oceanic climate, which means high temperatures and rain year round, with heaviest downpours occurring between December and April - the hottest and most humid months of the year. However, sea breezes modify humidity along the islands' coasts.

Although heavy cloud cover can mean a few miserable days in the wettest periods, this is comparatively rare. Generally speaking, the islands enjoy frequent bouts of strong sunshine between rain showers.

What to pack for Tonga weather

Pack light clothes with warmer wraps for the evenings and mountain trips. Be prepared for rain at any time of year.

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