Honolulu Weather in September

Honolulu has one of the world's most perfect climates — warm year-round with trade winds providing natural air conditioning. Temperatures average 80-88°F in summer and 70-79°F in winter with remarkable consistency. The Ko'olau Mountains just north divide the island into wet and dry sides, with Honolulu on the dry leeward side receiving less rain.

Excellent shoulder season — warm with fewer tourists in many destinations.