What month is best for whale watching in Maui?

February is the best month for whale watching in Maui, with peak humpback whale concentration in the Au'au Channel between Maui, Lanai, and Molokai. December through April is the official whale season — whales migrate from Alaska to breed and calve in Hawaii's warm, shallow waters. January and February offer the highest density of whales and the most active behavior: breaching, spy-hopping, and singing. Pacific Whale Foundation ($90–170) and Ultimate Whale Watch ($77–195) run multiple daily departures from Maalaea Harbor with marine naturalists on board. Calypso Maui ($55–60) offers the most affordable option. Book morning departures for calmer seas. By April, most whales begin returning north, though sightings continue through May.