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WhenToVisitParks

Oregon Caves National Monument & Preserve in September

Busy1.3× average month · best-time score 66/100

September at Oregon Caves National Monument & Preserve averages a daytime high near 87°F and an overnight low around 44°F, with about 0.8" of precipitation. Visitation runs about 1.3× the park's average month, which makes September a busy month here.

Average low
44°F
Average high
87°F

Range across the year: 33°F to 94°F

Crowds
1.3× averageBusy
  1. J
  2. F
  3. M
  4. A
  5. M
  6. J
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Precipitation
0.8 in
Daylight
12.3 hours

Roughly 10% of the park's yearly visitors come in September: roughly 6,300 recreation visits in a typical year, 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 66/100 ("Good"). Our recommended month is October: the lightest crowds of the park's good-weather months.

The daily average of about 66°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 12.9 miles from the park.

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.

How September compares with the months around it

MonthAvg high / lowCrowdsBest-time score
August94°F / 49°F2.0× Very busy38 Poor
September87°F / 44°F1.3× Busy66 Good
October72°F / 39°F1.0× Average58 Fair

All twelve months at Oregon Caves, with the best time to visit.

Reviewed by WhenToVisitParks Editorial Team · Updated

Frequently Asked Questions

September averages a daytime high near 87°F and an overnight low around 44°F at Oregon Caves National Monument & Preserve, with about 0.8 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 12.9 miles from the park, so conditions inside the park can differ, especially at other elevations.

September is busy at Oregon Caves National Monument & Preserve (about 1.3× the average month). Our best-time score rates it "Good" at 66/100. Our recommended month is October.

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

Booking a September trip to Oregon Caves National Monument & Preserve? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.

Top-rated places to stay near Oregon Caves

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.

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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.