Ocmulgee Mounds National Historical Park in September
September at Ocmulgee Mounds National Historical Park averages a daytime high near 88°F and an overnight low around 65°F, with about 3.7" of precipitation. Visitation runs about 1.9× the park's average month, which makes September a very busy month here.
- Average low
- 65°F
- Average high
- 88°F
Range across the year: 36°F to 94°F
- Precipitation
- 3.7 in
- Daylight
- 12.2 hours
Roughly 16% of the park's yearly visitors come in September: about 23,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
It is the single busiest month of the year at Ocmulgee Mounds; January, the quietest, runs only about 0.6× the average — a 3-to-1 swing between high and low season.
On our Best Time to Visit score September rates 33/100 ("Poor"). Our recommended month is May: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 76°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 10.7 miles from the park.
Because June, July and August together draw about 25% 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 9.8-hour midwinter low and the 14.2-hour summer high.
Park-wide, 2024 drew 141,905 recreation visits, down 21.6% from 180,928 in 2023.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 92°F / 71°F | 1.1× Average | 41 Poor |
| September | 88°F / 65°F | 1.9× Very busy | 33 Poor |
| October | 79°F / 53°F | 0.9× Average | 75 Excellent |
All twelve months at Ocmulgee Mounds, with the best time to visit.
Things to do at Ocmulgee Mounds in September
The National Park Service tags 14 Ocmulgee Mounds activities for fall. Here are 8 of them. Each links to the park's own page for it.
- Bartram Trail · 20-40 minutes
- Biking at Ocmulgee Mounds
- Dunlap Trail · 5-15 minutes
- Heritage Trail · 30-90 minutes
- Main Trail · 30-90 minutes
- McDougal Trail · 15-45 minutes
- Opelofa Loop Trail · 15-30 minutes
- Southeast Mound Trail · 5-10 minutes
Frequently Asked Questions
September averages a daytime high near 88°F and an overnight low around 65°F at Ocmulgee Mounds National Historical Park, with about 3.7 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 10.7 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is very busy at Ocmulgee Mounds National Historical Park (about 1.9× the average month). Our best-time score rates it "Poor" at 33/100. Our recommended month is May.
The busiest month is September and the quietest is January. September sits at about 1.9× the park's average, or 16% of annual visitation.
A typical September sees about 23,000 recreation visits at Ocmulgee Mounds National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Ocmulgee Mounds in September
Booking a September trip to Ocmulgee Mounds National Historical Park? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Ocmulgee Mounds
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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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.