Pinnacles National Park in September
September at Pinnacles National Park averages a daytime high near 92°F and an overnight low around 48°F, with about 0.1" of precipitation. Visitation runs about 0.7× the park's average month, which makes September a quiet month here.
- Average low
- 48°F
- Average high
- 92°F
Range across the year: 33°F to 96°F
- Precipitation
- 0.1 in
- Daylight
- 12.2 hours
Roughly 6% of the park's yearly visitors come in September: about 16,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
It is the quietest month of the year at Pinnacles; by contrast March, the busiest, runs about 1.4× the average — so September is the easiest time to have the place largely to yourself.
On our Best Time to Visit score September rates 76/100 ("Excellent"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 70°F is hot, with afternoons near 92°F to plan the day around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 0.6 miles from the park.
Because June, July and August together draw about 24% 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 9.5-hour midwinter low and the 14.5-hour summer high.
Park-wide, 2025 drew 343,208 recreation visits, down 3.1% from 354,076 in 2024.
Across the past decade overall visitation has risen about 63.9%, so a September visit is likely to feel busier than it did a few years ago.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 96°F / 50°F | 0.8× Quiet | 59 Fair |
| September | 92°F / 48°F | 0.7× Quiet | 76 Excellent |
| October | 83°F / 43°F | 0.8× Quiet | 79 Excellent |
All twelve months at Pinnacles, with the best time to visit.
Things to do at Pinnacles in September
The National Park Service tags 24 Pinnacles activities for fall. Here are 8 of them. Each links to the park's own page for it.
- Become a Junior Ranger at Pinnacles National Park · 10-30 minutes
- Hike Bacon-Butterfield Ranch Trail · 30-60 minutes
- Hike Bench Trail to South Wilderness Trail · 3-4 hours
- Hike Condor Gulch Trail · 60-90 minutes
- Hike High Peaks to Bear Gulch Loop · 4-5 hours
- Hike Moses Spring Trail to Rim Trail Loop · 1-2 hours
- Hike Prewett Point Trail · 30-60 minutes
- Rock Climbing the East Side of Pinnacles National Park
Frequently Asked Questions
September averages a daytime high near 92°F and an overnight low around 48°F at Pinnacles National Park, with about 0.1 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.6 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is quiet at Pinnacles National Park (about 0.7× the average month). Our best-time score rates it "Excellent" at 76/100. Our recommended month is October.
The busiest month is March and the quietest is September. September sits at about 0.7× the park's average, or 6% of annual visitation.
A typical September sees about 16,000 recreation visits at Pinnacles National Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Pinnacles in September
Booking a September trip to Pinnacles National Park? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Pinnacles
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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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.