Oregon Caves National Monument & Preserve in August
August at Oregon Caves National Monument & Preserve averages a daytime high near 94°F and an overnight low around 49°F, with about 0.3" of precipitation. Visitation runs about 2.1× the park's average month, which makes August a very busy month here.
- Average low
- 49°F
- Average high
- 94°F
Range across the year: 33°F to 94°F
- Precipitation
- 0.3 in
- Daylight
- 13.7 hours
Roughly 17% of the park's yearly visitors come in August: about 10,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes August the 2nd-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 August rates 38/100 ("Poor"). Our recommended month is October: the lightest crowds of the park's good-weather months.
The daily average of about 72°F is hot, with afternoons near 94°F to plan the day around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 12.9 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 53% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.7 hours of daylight in August 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 August compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| July | 94°F / 52°F | 2.4× Very busy | 31 Poor |
| August | 94°F / 49°F | 2.0× Very busy | 38 Poor |
| September | 87°F / 44°F | 1.3× Busy | 66 Good |
All twelve months at Oregon Caves, with the best time to visit.
Frequently Asked Questions
August averages a daytime high near 94°F and an overnight low around 49°F at Oregon Caves National Monument & Preserve, with about 0.3 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.
August is very busy at Oregon Caves National Monument & Preserve (about 2.0× the average month). Our best-time score rates it "Poor" at 38/100. Our recommended month is October.
The busiest month is July and the quietest is January. August sits at about 2.0× the park's average, or 17% of annual visitation.
A typical August sees about 10,000 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 August
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Top-rated places to stay near Oregon Caves
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See the full ranking of the best national parks to visit in August.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.