Yosemite · September
Yosemite in September
September is a busy time to visit Yosemite — quieter than August, busier than October.
Expect heavy crowds (8/10), highs near 83°F, about 12.4 hours of daylight, and 1 seasonal closure in effect.
Crowd score
How busy it gets
Approaching peak season — expect full lots by mid-morning and busy overlooks.
About 77% 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 10% of Yosemite’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
- 83°F
- Avg low
- 49°F
- Precipitation
- 0.6"
- Sunrise
- 5:40 AM
- Sunset
- 6:05 PM
- Daylight
- 12.4h
Source: NOAA 1991–2020 climate normals, Yosemite Valley
What's open
Yosemite in September: access
Open 24 hours; Tioga and Glacier Point roads close in winter; peak-season reservations
Seasonal closures may apply:
- Information
No overnight parking on Tioga & Glacier Point Roads
Overnight parking is not allowed on Tioga Road and Glacier Point Road, including all parking lots reachable from these roads.
Source: NPS Data API
Conditions
Current alerts
No additional active alerts or warnings reported for this park.
Source: NPS Data API
Context
Yosemite crowds across the year
Alternatives
Quieter nearby in September
FAQ
Yosemite in September
How busy is Yosemite in September?
September rates 8/10 for crowds (Busy) at Yosemite National Park — about 77% of its busiest month. Typical recreation visits: 404,317.
What is the weather like at Yosemite in September?
In September, Yosemite averages a high of 83°F and a low of 49°F, with about 0.6 inches of precipitation.
How much does it cost to visit Yosemite?
Entrance to Yosemite costs $35 ($35 per private vehicle, valid 7 days).
When is Yosemite least crowded?
Yosemite is quietest in January and February. If your dates are flexible, those months bring the thinnest crowds of the year.
How many hours of daylight does Yosemite get in September?
In mid-September, Yosemite gets about 12.4 hours of daylight, with sunrise around 5:40 AM and sunset around 6:05 PM.