Maui Climate and Weather
Maui is a tropical island with a mild year-round climate tempered by the Pacific Ocean. At sea level, the average afternoon winter high temperature is around 79ºF (26ºC) during the coldest months of December and January. August and September are the hottest summer months with average temperatures of about 86ºF (30ºC). Like most volcanic tropical islands, however, many different microclimates make it essential to pack for a variety of conditions: swimsuits and light hot-weather clothing for the beaches, a lightweight windbreaker for the occasional shower at higher elevations, and protection that is more serious during inclement conditions when hiking Haleakala.