Andersonville National Historic Site in September
September at Andersonville National Historic Site averages a daytime high near 87°F and an overnight low around 64°F, with about 4.4" of precipitation. Visitation runs about 0.8× the park's average month, which makes September a quiet month here.
- Average low
- 64°F
- Average high
- 87°F
Range across the year: 35°F to 91°F
- Precipitation
- 4.4 in
- Daylight
- 12.2 hours
Roughly 7% of the park's yearly visitors come in September: roughly 6,200 recreation visits in a typical year, 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 65/100 ("Good"). Our recommended month is October: the lightest crowds of the park's good-weather months.
The daily average of about 75°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 13.4 miles from the park.
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.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 90°F / 69°F | 0.9× Average | 51 Fair |
| September | 87°F / 64°F | 0.8× Quiet | 65 Good |
| October | 78°F / 53°F | 1.0× Average | 67 Good |
All twelve months at Andersonville, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 87°F and an overnight low around 64°F at Andersonville National Historic Site, with about 4.4 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 13.4 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is quiet at Andersonville National Historic Site (about 0.8× the average month). Our best-time score rates it "Good" at 65/100. Our recommended month is October.
The busiest month is May and the quietest is January. September sits at about 0.8× the park's average, or 7% of annual visitation.
A typical September sees about 6,000 recreation visits at Andersonville National Historic Site, based on National Park Service monthly counts from 1979–2025.
Where to stay near Andersonville in September
Booking a September trip to Andersonville National Historic Site? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Andersonville
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See the full ranking of the best national parks to visit in September.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.