Best time to swim in Tonga Sea temperature by month
Do you want to go to the seaside in Tonga? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in Tonga.
Swimming in Tonga by month
Discover swimming conditions in detail in Tonga by month below. Click on the links for each month to see details about the sea temperature in the cities of: Nukuʻalofa, Haʻapai islands (Lifuka and Foa), Tongatapu Island and Vavaʻu island.
| Month | Average Sea temperature | Our opinion |
|---|---|---|
| January | 82°F to 83°F | ideal swimming |
| February | 83°F to 84°F | ideal swimming |
| March | 83°F to 84°F | ideal swimming |
| April | 82°F to 84°F | ideal swimming |
| May | 80°F to 82°F | ideal swimming |
| June | 79°F to 80°F | ideal swimming* |
| July | 77°F to 79°F | ideal swimming* |
| August | 75°F to 78°F | pleasant swimming |
| September | 75°F to 79°F | pleasant swimming |
| October | 77°F to 80°F | ideal swimming* |
| November | 78°F to 81°F | ideal swimming* |
| December | 80°F to 83°F | ideal swimming |
* in at least part of the area.
Where and when should you swim in Tonga?
Best time to swim in Haʻapai islands (Lifuka / Foa)
It is possible to swim all year in Haʻapai islands (Lifuka / Foa).
Water temperatures in Tonga over the entire year
On this chart, we show you the variation of the average sea water temperature in Tonga for the cities of: Nukuʻalofa, Haʻapai islands (Lifuka and Foa), Tongatapu Island and Vavaʻu island.