Arches National Park in September
September at Arches National Park averages a daytime high near 87°F and an overnight low around 58°F, with about 0.9" of precipitation. Visitation runs about 1.4× the park's average month, which makes September a busy month here.
- Average low
- 58°F
- Average high
- 87°F
Range across the year: 22°F to 99°F
- Precipitation
- 0.9 in
- Daylight
- 12.2 hours
Roughly 12% of the park's yearly visitors come in September: about 179,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 4th-busiest of the park's twelve months, sitting between the June peak (1.5×) and the January low (0.2×).
On our Best Time to Visit score September rates 46/100 ("Fair"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 73°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 7.5 miles from the park.
Because June, July and August together draw about 35% 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 9.3-hour midwinter low and the 14.7-hour summer high.
Park-wide, 2025 drew 1,511,740 recreation visits, up 3.1% from 1,466,528 in 2024.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 96°F / 68°F | 1.3× Busy | 22 Poor |
| September | 87°F / 58°F | 1.4× Busy | 46 Fair |
| October | 72°F / 44°F | 1.1× Average | 51 Fair |
All twelve months at Arches, with the best time to visit.
Things to do at Arches in September
The National Park Service tags 3 Arches activities for fall. Each links to the park's own page for it.
- Arches Junior Ranger Program
- Stargaze at Panorama Point · 15-120 minutes
- Start at Arches Visitor Center · 15-60 minutes
Frequently Asked Questions
September averages a daytime high near 87°F and an overnight low around 58°F at Arches National Park, with about 0.9 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 7.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is busy at Arches National Park (about 1.4× the average month). Our best-time score rates it "Fair" at 46/100. Our recommended month is October.
The busiest month is June and the quietest is January. September sits at about 1.4× the park's average, or 12% of annual visitation.
A typical September sees about 179,000 recreation visits at Arches National Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Arches in September
Booking a September trip to Arches National Park? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Arches
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.
Visiting Arches in September?
Get crowd forecasts and lodging deals for Arches by email. No spam, unsubscribe anytime.
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.