How Crowded Is Delaware Water Gap National Recreation Area in September?
September runs about 1.3× Delaware Water Gap National Recreation Area's average month, which makes it a busy month here — roughly 11% of the park's yearly visitors come in September.
In a typical September the park sees about 422,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 3rd-busiest of the park's twelve months, sitting between the July peak (1.7×) and the January low (0.5×).
On our Best Time to Visit score September rates 41/100 ("Poor"), versus the top-rated March at 82/100 — the best overall balance of crowds and daylight.
Because June, July and August together draw about 38% 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 12.3 hours of daylight in September to explore — between the 9-hour midwinter low and the 14.9-hour summer high.
Park-wide, 2025 drew 3,986,709 recreation visits, down 2.3% from 4,079,763 in 2024.
Across the past decade overall visitation has risen about 18.1%, so a September visit is likely to feel busier than it did a few years ago.
Frequently Asked Questions
September is busy at Delaware Water Gap National Recreation Area (about 1.3× the average month). Our best-time score rates it "Poor". The single best month overall is March.
The busiest month is July and the quietest is January. September sits at about 1.3× the park's average, or 11% of annual visitation.
A typical September sees about 422,000 recreation visits at Delaware Water Gap National Recreation Area, based on National Park Service monthly counts from 1979–2025.
Where to stay near Delaware Water Gap in September
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Top-rated places to stay near Delaware Water Gap
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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.