Arches · September
Arches in September
September is a busy time to visit Arches — busier than August, quieter than October.
Expect heavy crowds (8/10), highs near 88°F, and about 12.4 hours of daylight.
Crowd score
How busy it gets
Approaching peak season — expect full lots by mid-morning and busy overlooks.
About 79% of this park's busiest month.
Source: NPS Visitor Use Statistics, 2023–2025
Data: NPS visitation 2023–2025 · crowd scores computed Oct 2026 · alerts checked Oct 18, 2026. How this is calculated →
Computed from federal data · Methodology by Sharon Ben-Moshe
Visitation
Typical September visits vs. the year
September draws about 9% of Arches’s yearly visitors.
Typical monthly recreation visits, averaged over the most recent three full years.
Source: NPS Visitor Use Statistics, 2023–2025
Weather
September weather
- Avg high
- 88°F
- Avg low
- 56°F
- Precipitation
- 0.8"
- Sunrise
- 6:00 AM
- Sunset
- 6:25 PM
- Daylight
- 12.4h
Source: NOAA 1991–2020 climate normals, Moab
What's open
Arches in September: access
Open 24 hours; timed entry required most daytime hours in peak season
No seasonal road or area closures reported for this park.
Source: NPS Data API
Conditions
Current alerts
- Information
Trip-planning tips for 2026
Planning to visit Arches this year? To ensure the best experience, please anticipate potentially long wait times at the entrance station. If trailhead parking is full, plan to return a little later. Please avoid parking on vegetation and roadways to help preserve this beautiful place for everyone to enjoy.
- Information
Timed-entry reservations required
From April through October, a timed-entry ticket is required to drive into the park between 7 a.m. and 4 p.m.
Details on nps.gov →
Source: NPS Data API
Context
Arches crowds across the year
Alternatives
Quieter nearby in September
FAQ
Arches in September
How busy is Arches in September?
September rates 8/10 for crowds (Busy) at Arches National Park — about 79% of its busiest month. Typical recreation visits: 140,509.
What is the weather like at Arches in September?
In September, Arches averages a high of 88°F and a low of 56°F, with about 0.8 inches of precipitation.
How much does it cost to visit Arches?
Entrance to Arches costs $30 ($30 per private vehicle, valid 7 days; timed-entry reservations Apr to Oct).
Do I need a reservation to visit Arches in September?
A reservation may be required: Timed-entry reservations required. From April through October, a timed-entry ticket is required to drive into the park between 7 a.m. and 4 p.m. Confirm current requirements on nps.gov before you visit.
When is Arches least crowded?
Arches is quietest in January and December. If your dates are flexible, those months bring the thinnest crowds of the year.
How many hours of daylight does Arches get in September?
In mid-September, Arches gets about 12.4 hours of daylight, with sunrise around 6:00 AM and sunset around 6:25 PM.