How Crowded Is Eisenhower in September?
September is a very busy month at Eisenhower National Historic Site, running about 1.7× the park's average month — roughly 14% of the year's visitors come in September. It is in fact the busiest month of the year here, so expect full parking lots, busy trails and booked-out campgrounds. If crowds bother you, January (the quietest month) or the recommended May are easier. Typical September weather averages a high near 78°F and a low around 54°F, with about 4.6" of precipitation. You'll get about 12.2 hours of daylight to explore.
Frequently Asked Questions
September is very busy at Eisenhower National Historic Site (about 1.7× the average month). Our best-time score rates it "Poor". The single best month overall is May.
The busiest month is September and the quietest is January. September sits at about 1.7× the park's average, or 14% of annual visitation.
Source: National Park Service Visitor Use Statistics (1980–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.