Historical weather data, all-time temperature records, and monthly climate averages for Lahaina, HI. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Lahaina is about as close to perfect as weather gets — expect a high around 80° and a low near 65°, with only a 16% chance of rain. The most dramatic swing on this date came in 2010, when temperatures peaked at 85°, while 1996 brought the coldest April 4th on record at 60°.
Lahaina's weather is famously stable, but the extremes tell an interesting story: the mercury has hit 95° (August 1986) and dipped as low as 47° (February 2021), a 48-degree all-time range that's remarkably narrow for any destination. The wettest single day on record dropped 7.05 inches on March 24, 2006 — a reminder that West Maui's mountains can occasionally unleash serious rain.
Lahaina is a year-round destination with barely a bad month — average highs stay between 78° in January and 86° in August, a swing of just 8 degrees. If you want peak warmth, aim for late July through September; if you prefer slightly cooler temps and thinner crowds, January is your window. December is the wettest stretch of the year, averaging 0.84 inches of precipitation in its rainiest week.