Maui Weather in September

Maui is known as the Valley Isle, with two volcanic mountains — Haleakala at 10,023 feet and the West Maui Mountains — creating dramatic climate variation across a single island. The island's diverse microclimates range from dry desert to rainforest within miles. Lahaina on the leeward side was tragically destroyed by wildfire in 2023, highlighting fire risk in dry leeward areas.

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