Tonga weather
Our guide to the weather in Tonga during January
We've looked at the most up-to-date weather data for Tonga, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Tonga weather in January.
How warm is it in Tonga during January?
The temperature is extremely stable in January with average highs of 27℃ and lows just 1℃ lower at 26℃. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Tonga during January?
On average, there will be 11 rainy days during the month, amounting to 413.3mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a good chance that you'll catch a thunderstorm during your trip.
Is it windy in Tonga during January?
Expect moderate breeze becoming stronger at times during January, with occasional gusts up to 20mph. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.
Weather in Tonga
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