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Scuba diving in Tonga

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Diving in Tonga

Quick facts

  • A yellow fever vaccination certificate is required from travellers over 1 year of age coming from infected areas.
  • Hepatitis A and typhoid recommended
  • There is a departure tax of T$19

When to go

Rain and temperature

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Water temperature

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Where to dive

  • Ha'apai

    Volcanoes plume smoke as gin clear water laps quietly at the shorelines of Ha’apai, a collection of Tongan islands far out in the South Pacific. Divers, prepare to be blown away.

  • Tongatapu
  • Vava'u

What to see

Tongan but English widely spoken
GMT +13
Tropical; warm season (Dec to May), cool season (May to Dec)
Natural hazards:
Cyclones (Oct to April), earthquakes and volcanic activity on Fanuafo'ou
Diving season:
Year round but diving is best between May and November
Water temperature:
24C/75F (Jan to March)
21C/69F (July to Sept)
Air temperature:
25 - 29C


For better readability of the table, pass into the landscape mode.

Most likely sightingsPossible sightings
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