How Crowded Is Oregon Caves National Monument & Preserve in September?
September runs about 1.3× Oregon Caves National Monument & Preserve's average month, which makes it a busy month here — roughly 10% of the park's yearly visitors come in September.
In a typical September the park sees roughly 6,300 recreation visits, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 5th-busiest of the park's twelve months, sitting between the July peak (2.4×) and the January low (0.1×).
On our Best Time to Visit score September rates 51/100 ("Fair"), versus the top-rated February at 81/100 — the best overall balance of crowds and daylight.
Because June, July and August together draw about 53% 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 8.9-hour midwinter low and the 15.1-hour summer high.
Park-wide, 2025 drew 64,354 recreation visits, down 31.5% from 94,016 in 2024.
Frequently Asked Questions
September is busy at Oregon Caves National Monument & Preserve (about 1.3× the average month). Our best-time score rates it "Fair". The single best month overall is February.
The busiest month is July and the quietest is January. September sits at about 1.3× the park's average, or 10% of annual visitation.
A typical September sees about 6,000 recreation visits at Oregon Caves National Monument & Preserve, based on National Park Service monthly counts from 1979–2025.
Where to stay near Oregon Caves in September
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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.