Swimming in Tonga in may 2025 Sea temperature by city in may
Do you want to go to the beach in Tonga in may 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in may in Tonga by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Tonga in may 2025
Here, find the average sea temperature in Tonga in may in several coastal cities.
80°F
min: 78°F / max: 83°F
81°F
min: 79°F / max: 83°F
80°F
min: 78°F / max: 83°F
82°F
min: 79°F / max: 85°F
Where should you go swimming in Tonga in the month of may?
Swimming in Tonga in may is ideal
In may in Tonga swimming conditions are generally the same everywhere.
In may in Nukuʻalofa, Haʻapai islands (Lifuka and Foa), Tongatapu Island and Vavaʻu island, swimming conditions are perfect! With water reaching a maximum of 83°F and an average of 80°F, going in the water (and staying there!) feels great.
Where to go swimming in Tonga in may: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in may
Nukuʻalofa
| May | |||
| Average sea temperature | 80°F | ||
| Minimum sea temperature | 78°F | ||
| Maximum sea temperature | 83°F | ||
| Average outside temperature | 77°F | ||
| Maximum outside temperature | 79°F | ||
| Minimum outside temperature | 77°F | ||
| Precipitation | 6.1in | ||
| Number of days of precipitation | 5 jour(s) (18%) | ||
| Cloud cover | 47% | ||
| Our opinion | ideal swimming |
More information on swimming in Nukuʻalofa in may
Haʻapai islands (Lifuka and Foa)
| May | |||
| Average sea temperature | 81°F | ||
| Minimum sea temperature | 79°F | ||
| Maximum sea temperature | 83°F | ||
| Average outside temperature | 79°F | ||
| Maximum outside temperature | 79°F | ||
| Minimum outside temperature | 79°F | ||
| Precipitation | 6.8in | ||
| Number of days of precipitation | 7 jour(s) (21%) | ||
| Cloud cover | 48% | ||
| Our opinion | ideal swimming |
More information on swimming in Haʻapai islands (Lifuka / Foa) in may
Tongatapu Island
| May | |||
| Average sea temperature | 80°F | ||
| Minimum sea temperature | 78°F | ||
| Maximum sea temperature | 83°F | ||
| Average outside temperature | 77°F | ||
| Maximum outside temperature | 79°F | ||
| Minimum outside temperature | 77°F | ||
| Precipitation | 6.1in | ||
| Number of days of precipitation | 5 jour(s) (18%) | ||
| Cloud cover | 47% | ||
| Our opinion | ideal swimming |
More information on swimming in Tongatapu Island in may
Vavaʻu island
| May | |||
| Average sea temperature | 82°F | ||
| Minimum sea temperature | 79°F | ||
| Maximum sea temperature | 85°F | ||
| Average outside temperature | 81°F | ||
| Maximum outside temperature | 81°F | ||
| Minimum outside temperature | 79°F | ||
| Precipitation | 9.2in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 51% | ||
| Our opinion | ideal swimming |
More information on swimming in Vavaʻu island in may
List of coastal cities in Tonga
| Nukuʻalofa in may | ideal swimming |
| Haʻapai islands (Lifuka and Foa) in may | ideal swimming |
| Tongatapu Island in may | ideal swimming |
| Vavaʻu island in may | ideal swimming |