Humpback Whale Hawaii December – Encounter Guide & Best Sites

Season opening. First whales arrive in December. Numbers build through January.

Encounter overview

Diving or snorkelling with humpback whales in Hawaii during December is high season, with an encounter probability of approximately 70% under normal conditions. Humpback whales are the ocean’s showmen – breaching, tail-slapping, and singing in frequencies that travel hundreds of kilometres. In-water encounters are among the most profound experiences in ocean travel.

Best sites

• Maui (Kaanapali
• Lahaina
• Molokini

What to expect

Humpbacks migrate between polar feeding grounds and tropical breeding/calving areas. Singing males are stationary for minutes at a time – a gift for in-water encounters. Mothers with calves are highly protective; maintain distance and wait for the whale to approach.

Water conditions in December

Water temperature in Hawaii typically ranges 22-28°C. Visibility at Maui (Kaanapali in December is generally good; check local liveaboard or dive operator reports the week of your trip for specific conditions. Lava reef, manta night dives, open water is the primary dive style in Hawaii.

Practical tips

In-water encounters require a licensed operator and often a permit. Do not enter the water if the whale is actively fleeing. Fins and masks only – scuba bubbles disturb whales. The whales often approach curious, stationary humans on their own terms.

Getting there

Fly into Kona (KOA) or Honolulu (HNL) on Oahu. Manta ray night dives at kona, tiger sharks, dolphins, humpback whales in winter. US visa/ESTA requirements apply. Currency: US Dollar (USD).

Is December a good time to visit Hawaii for humpback whale?

Yes – December is high season for humpback whales in Hawaii. Encounter probability is around 70% on a dedicated trip. Best sites include Maui (Kaanapali, Lahaina, Molokini. Check availability at Maui (Kaanapali as spaces fill quickly in peak months.