How Crowded Is Yellowstone in August?
August is a very busy month at Yellowstone National Park, running about 2.3× the park's average month — roughly 20% 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 "Poor" for a visit. Typical August weather averages a high near 71°F and a low around 37°F, with about 1.3" of precipitation. You'll get about 13.9 hours of daylight to explore.
Frequently Asked Questions
August is very busy at Yellowstone National Park (about 2.3× the average month). Our best-time score rates it "Poor". The single best month overall is April.
The busiest month is July and the quietest is November. August sits at about 2.3× the park's average, or 20% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.