How Crowded Is Haleakalā in August?
August is an average month at Haleakalā National Park, running about 1.0× the park's average month — roughly 9% of the year's visitors come in August. That puts it between the July peak and the November low. Overall our best-time score rates August as "Fair" for a visit. Typical August weather averages a high near 66°F and a low around 49°F, with about 2.2" of precipitation. You'll get about 12.7 hours of daylight to explore.
Frequently Asked Questions
August is average at Haleakalā National Park (about 1.0× the average month). Our best-time score rates it "Fair". The single best month overall is September.
The busiest month is July and the quietest is November. August sits at about 1.0× the park's average, or 9% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.