Maui whale watching season, month by month
Humpbacks reach Maui from November and leave by April. Here is what each month of the season actually gives you.
Roughly 10,000 North Pacific humpback whales winter in Hawaiian waters, and the shallow Au‘au Channel off Lahaina holds one of the densest concentrations anywhere on earth. They arrive from Alaska over several weeks, peak hard in late winter, and drift north again in spring.
The short answer: February and March are the peak — the most whales, the most surface activity, and the highest number of mothers with new calves. Our season runs daily from December 15 to April 12. If you want the channel quieter, come in December or early April.
At a glance
| Month | Whale numbers | Best for |
|---|---|---|
| December | Building | Fewest boats on the water |
| January | High | Whale song at its clearest |
| February | Peak | Most whales, most surface activity |
| March | Peak | Best month for mother-and-calf encounters |
| April | Tapering | Quiet water, late calves |
The season in detail
Building
December
The season opens
The first arrivals — usually mature males — have been trickling in since late October, and by the middle of December there are enough whales in the channel for us to open daily trips. Sightings are reliable rather than constant, and the boats are quiet. If you want the channel closer to yourself, this is the month.
Best for: Fewest boats on the water.
High
January
Numbers climb fast
January is when the Au‘au Channel starts to feel busy in the best way. Competition pods form as males compete for females, and the singing picks up sharply — this is when the hydrophone earns its place on the boat. First calves of the season begin to appear.
Best for: Whale song at its clearest.
Peak
February
Peak season
The busiest month for whales and the single best time to book if you only get one shot. Mothers with newborn calves are everywhere in the shallow water between Maui, Lana‘i and Moloka‘i, and surface activity — breaching, pec slapping, tail throwing — is at its highest all season. Book well ahead.
Best for: Most whales, most surface activity.
Peak
March
Peak continues, calves everywhere
Numbers stay near their February high, and March is arguably the better month for calves: they are a few weeks old, strong enough to be playful, and mothers are more relaxed about letting them roll around near the boat. Competition pods are still running hard.
Best for: Best month for mother-and-calf encounters.
Tapering
April
The long goodbye
The adults start heading north for Alaska, and mothers with calves are the last to leave — they hang on in the warm shallow water while the calves build strength for the crossing. Sightings thin out through the month, which is why our season closes on April 12.
Best for: Quiet water, late calves.
Best time of day
Whale activity does not vary as much across the day as people expect, so the honest advice is to pick your conditions rather than chase a magic hour.
Early morning gives the flattest water — trade winds usually build later — and the softest light. Midday gives the clearest blue water, which matters more than it sounds: you can often see whales below the surface as well as above it. Late afternoon is the photographers’ slot, and competition pods are often at their liveliest.
Does weather matter?
Less than you would think. Some of our best sightings have come on grey, blustery days — whales do not mind rain. We cancel only when the sea state is genuinely unsafe, and then you are rebooked or refunded in full.
Season questions
When is whale season in Maui?
Humpbacks are in Maui waters from roughly November through April, and our own season runs daily from December 15 to April 12. February and March are the peak — that is when the greatest number of whales, the most surface activity and the highest concentration of mothers with calves are all in the channel at once.
Will I definitely see whales?
In peak season, almost certainly. We back it with a whale sighting guarantee: if we do not find whales on your trip, you can come again for free or take a full refund. No arguing about it.
How close do you get to the whales?
Federal law sets the minimum at 100 yards from a humpback in Hawaiian waters, and we hold to it. What we can do is shut down the engines and wait — and whales regularly close that distance themselves out of curiosity. Because Hoku sits low to the water, a whale that surfaces beside us is genuinely at eye level, which is a very different thing from looking down off an upper deck.
What is the best time of day to go?
Whale activity is fairly steady across the day, so pick the conditions you want. Early morning is the calmest water and the softest light. Midday gives the clearest blue water for spotting whales under the surface. The 3:45 pm golden-hour trip is the photographers’ choice. Competition pods are often liveliest in the afternoon.
How many people are on the boat?
A maximum of 20, and often fewer. Hoku is a 37-foot rigid-hull inflatable with outward-facing seats, so everybody is on a rail with an unobstructed view. Large catamarans on this coast run 100 to 150 passengers.
Read more
November: early season
What the first weeks of the season really deliver.
Reading whale behaviour
Breaching, spy hopping, tail slaps and song, explained.
Whales from shore
The best free lookouts on the island.
Come during the peak
February and March fill up first. Book early to get the departure time you want.