How Crowded Is Acadia in December?
December is a very quiet month at Acadia National Park, running about 0.1× the park's average month — roughly 0% of the year's visitors come in December. That puts it between the August peak and the February low. Overall our best-time score rates December as "Poor" for a visit. Typical December weather averages a high near 38°F and a low around 22°F, with about 5.7" of precipitation. You'll get about 8.7 hours of daylight to explore.
Frequently Asked Questions
December is very quiet at Acadia National Park (about 0.1× the average month). Our best-time score rates it "Poor". The single best month overall is May.
The busiest month is August and the quietest is February. December sits at about 0.1× the park's average, or 0% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.