How Crowded Is Hawaiʻi Volcanoes in December?
December is a busy month at Hawaiʻi Volcanoes National Park, running about 1.2× the park's average month — roughly 10% of the year's visitors come in December. That puts it between the January peak and the September low. Overall our best-time score rates December as "Poor" for a visit. Typical December weather averages a high near 81°F and a low around 67°F, with about 4" of precipitation. You'll get about 10.8 hours of daylight to explore.
Frequently Asked Questions
December is busy at Hawaiʻi Volcanoes National Park (about 1.2× the average month). Our best-time score rates it "Poor". The single best month overall is September.
The busiest month is January and the quietest is September. December sits at about 1.2× the park's average, or 10% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.