How Crowded Is Hawaiʻi Volcanoes in April?
April is an average month at Hawaiʻi Volcanoes National Park, running about 0.9× the park's average month — roughly 7% of the year's visitors come in April. That puts it between the January peak and the September low. Overall our best-time score rates April as "Excellent" for a visit. Typical April weather averages a high near 80°F and a low around 67°F, with about 1.9" of precipitation. You'll get about 12.4 hours of daylight to explore.
Frequently Asked Questions
April is average at Hawaiʻi Volcanoes National Park (about 0.9× the average month). Our best-time score rates it "Excellent". The single best month overall is September.
The busiest month is January and the quietest is September. April sits at about 0.9× the park's average, or 7% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.