Fort Sumter and Fort Moultrie National Historical Park in September
September at Fort Sumter and Fort Moultrie National Historical Park averages a daytime high near 86°F and an overnight low around 68°F, with about 5.5" of precipitation. Visitation runs about 0.7× the park's average month, which makes September a quiet month here.
- Average low
- 68°F
- Average high
- 86°F
Range across the year: 37°F to 91°F
- Precipitation
- 5.5 in
- Daylight
- 12.2 hours
Roughly 6% of the park's yearly visitors come in September: about 36,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 10th-busiest of the park's twelve months, sitting between the July peak (1.5×) and the January low (0.5×).
On our Best Time to Visit score September rates 66/100 ("Good"). Our recommended month is November: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 77°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 0.9 miles from the park.
Because June, July and August together draw about 34% 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 814,658 recreation visits, up 112% from 384,308 in 2024.
Across the past decade overall visitation has eased about 39.7%, 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 / 72°F | 1.1× Average | 34 Poor |
| September | 86°F / 68°F | 0.7× Quiet | 66 Good |
| October | 78°F / 58°F | 0.9× Average | 71 Good |
All twelve months at Fort Sumter and Fort Moultrie, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 86°F and an overnight low around 68°F at Fort Sumter and Fort Moultrie National Historical Park, with about 5.5 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.9 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is quiet at Fort Sumter and Fort Moultrie National Historical Park (about 0.7× the average month). Our best-time score rates it "Good" at 66/100. Our recommended month is November.
The busiest month is July and the quietest is January. September sits at about 0.7× the park's average, or 6% of annual visitation.
A typical September sees about 36,000 recreation visits at Fort Sumter and Fort Moultrie National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Fort Sumter and Fort Moultrie in September
Booking a September trip to Fort Sumter and Fort Moultrie National Historical Park? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Fort Sumter and Fort Moultrie
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Visiting Fort Sumter and Fort Moultrie in September?
Get crowd forecasts and lodging deals for Fort Sumter and Fort Moultrie by email. No spam, unsubscribe anytime.
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.