How Crowded Is Manassas in August?
August is an average month at Manassas National Battlefield Park, running about 1.1× the park's average month — roughly 9% of the year's visitors come in August. That puts it between the April peak and the January low. Overall our best-time score rates August as "Fair" for a visit. Typical August weather averages a high near 85°F and a low around 67°F. You'll get about 13.5 hours of daylight to explore.
Frequently Asked Questions
August is average at Manassas National Battlefield Park (about 1.1× the average month). Our best-time score rates it "Fair". The single best month overall is May.
The busiest month is April and the quietest is January. August sits at about 1.1× 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.