Alaska whale-watching cruises happen in the summertime. Migrating whales, like people, prefer to spend their winters in the warm waters of Hawaii, Central America, and Mexico. In May, the nutrient-rich waters of Point Adolphus, Glacier Bay, and Icy Strait attract large numbers of humpback whales.
For the warmest weather in Alaska, travelers should visit from June through August when average temperatures are in the sixties. However, that's also the busiest tourist season. icy strait point whale watching brings plenty of visitors sailing on large cruise ships. A little town like Hoonah, AK, has a year-round population of only 800 residents. However, on busy summer days, as much as ten thousand cruise ship passengers will disembark in Hoonah.
The shoulder season for Glacier Bay National Park and Chichagof Island is in May and September. For travelers who want to see the whales with fewer tourists, that is the best time to visit. Usually the humpbacks will arrive first, accompanied by orcas.