Tonga weather in January 2025

Q: How hot is it in Tonga in January?

Daytime temperatures usually reach 29°C in Nuku'alofa, Tonga in January with high heat and humidity, falling to 24°C at night.

Q: How warm is the sea around Tonga in January?

The average sea temperature around Nuku'alofa, Tonga in January is 27°C.

Q: Does it rain in Tonga in January?

There are usually 18 days with some rain in Nuku'alofa, Tonga in January and the average monthly rainfall is 174mm.

Q: What is the chance of a cyclone in Tonga in January?

On average less than 1 day in January in Nuku'alofa, Tonga is likely to be affected by the passage of one or more tropical storms.

Expect 29°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Tonga in January. Check more long-term weather averages for Tonga in January before you book your next holiday to Tonga in 2025/2026.

29
29°C max day temperature
18
18 days with some rainfall
24
24°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
174
174 mm of monthly rainfall
11
11+ (Extreme) UV index
27
27°C sea temperature

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The January weather guide for Tonga (Nuku'alofa) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Tonga destinations

Below are average maximum temperatures at popular countries, regions and places in Tonga in January. Select a holiday destination to see more weather parameters.

29
Nuku'alofa
29
Vava'u

All Tonga destinations

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

How hot is it in Tonga in January?

Daytime temperatures usually reach 29°C in Nuku'alofa, Tonga in January with high heat and humidity, falling to 24°C at night.

How warm is the sea around Tonga in January?

The average sea temperature around Nuku'alofa, Tonga in January is 27°C.

Does it rain in Tonga in January?

There are usually 18 days with some rain in Nuku'alofa, Tonga in January and the average monthly rainfall is 174mm.

What is the chance of a cyclone in Tonga in January?

On average less than 1 day in January in Nuku'alofa, Tonga is likely to be affected by the passage of one or more tropical storms.

Tonga January sunrise & sunset times

Browse the sunrise and sunset times for Tonga in January 2025. Select a month to view Tonga sunrise and sunset times for the next 12 months. The Tonga sunrise and sunset times shown below are for Nuku'alofa.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Wednesday, 1st January 2025	06:02	19:26
Thursday, 16th January 2025	06:12	19:28
Friday, 31st January 2025	06:22	19:26

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Tonga - quick facts
Time difference	UK +13 hours
Language(s)	Tongan, English
Currency	Tongan Pa'anga
Electricity	I plug (240V)
Driving side	Left
Why visit?	Beaches Culture Nature
Tourist info	Tonga Tourism Authority