The Southcentral climate (Anchorage, the Kenai Peninsula and the surrounding area) boasts relatively mild summers (highs near 70).
The Interior climate (Fairbanks and Denali) has warm summers (highs in the 90s).
The climate of the Inside Passage, where most of the cruise ships go, is usually warm and damp (summer highs in the 60s and 70s).
Coastal areas have more moderate temperatures than inland areas as well as more precipitation. Daily temperature fluctuations are wider inland.
In late spring and early summer (close to the solstice in mid-June), the days are the longest. Early summer has less rain than late summer and fall.