When is the best time to dive in Hawaii?

Summer, roughly June through September, brings the calmest seas and the best visibility. Hawaii dives well all year, but the warmer months are the most reliable for clear, settled conditions.

When can you hear humpback whales while diving in Hawaii?

Humpback whale season runs through the winter months, roughly December into April, when their song fills many dives. Note that north shores can be rougher during this stretch.

Can you dive Hawaii year-round?

Yes. The water stays warm all year and shore dives are accessible throughout. Summer offers the calmest conditions, while winter is rougher on north shores but brings whale song to the reef.

Best time to go · Hawaii

Hawaii

Hawaii dives well all year, with summer bringing the calmest seas and the best visibility. Winter is rougher on north shores but is humpback-whale season, when their song fills many dives.

See it month by month

Month by month

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When to go & why

June–September: calmest water and best visibility
December–April: humpback whale season
Year-round warm water and accessible shore dives

Notable months

February: Humpback whale season, song on the reef
June: Calmest seas, best visibility

Plan your Hawaii trip with a local operator

Browse dive operators who know the seasons and can book your dates.

Browse dive operators

Common questions

When is the best time to dive in Hawaii?: Summer, roughly June through September, brings the calmest seas and the best visibility. Hawaii dives well all year, but the warmer months are the most reliable for clear, settled conditions.
When can you hear humpback whales while diving in Hawaii?: Humpback whale season runs through the winter months, roughly December into April, when their song fills many dives. Note that north shores can be rougher during this stretch.
Can you dive Hawaii year-round?: Yes. The water stays warm all year and shore dives are accessible throughout. Summer offers the calmest conditions, while winter is rougher on north shores but brings whale song to the reef.