How Crowded Is Rock Creek Park in September?
September runs about 1.2× Rock Creek Park's average month, which makes it an average month here — roughly 10% of the park's yearly visitors come in September.
In a typical September the park sees about 202,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 4th-busiest of the park's twelve months, sitting between the July peak (1.5×) and the December low (0.6×).
On our Best Time to Visit score September rates 43/100 ("Poor"), versus the top-rated February at 77/100 — the best overall balance of crowds and daylight.
Because June, July and August together draw about 35% 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 9.3-hour midwinter low and the 14.7-hour summer high.
Park-wide, 2025 drew 1,865,048 recreation visits, down 2.7% from 1,917,170 in 2024.
Across the past decade overall visitation has eased about 18%, so September may feel a touch quieter than it once did.
Frequently Asked Questions
September is average at Rock Creek Park (about 1.1× the average month). Our best-time score rates it "Poor". The single best month overall is February.
The busiest month is July and the quietest is December. September sits at about 1.1× the park's average, or 10% of annual visitation.
A typical September sees about 202,000 recreation visits at Rock Creek Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Rock Creek in September
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Top-rated places to stay near Rock Creek
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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). Updated 2026-07-14.