How Crowded Is Andersonville National Historic Site in September?

September runs about 0.8× Andersonville National Historic Site's average month, which makes it a quiet month here — roughly 7% of the park's yearly visitors come in September.

In a typical September the park sees roughly 6,200 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes September the 11th-busiest of the park's twelve months, sitting between the May peak (1.5×) and the January low (0.6×).

On our Best Time to Visit score September rates 68/100 ("Good") — the single best-rated month at Andersonville, balancing crowds against weather and daylight.

Typical September weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 87°F and an overnight low around 64°F, with about 4.4" of precipitation.

That average of about 75°F is warm enough that midday heat is worth planning around.

Because June, July and August together draw about 23% of annual visitors, choosing September instead steps outside that summer crush — the single biggest lever on how crowded the park feels.

You'll have about 12.2 hours of daylight in September to explore — between the 9.9-hour midwinter low and the 14.1-hour summer high.

Park-wide, 2025 drew 61,850 recreation visits, down 15.2% from 72,925 in 2024.

Across the past decade overall visitation has eased about 44.5%, so September may feel a touch quieter than it once did.