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Yosemite · September
September is a busy time to visit Yosemite — quieter than August, busier than October.
Expect heavy crowds (8/10), highs near 83°F, and about 12.4 hours of daylight.
Crowd score
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 Jul 2026 · alerts checked Jul 10, 2026. How this is calculated →
Computed from federal data · Methodology by Sharon Ben-Moshe
Visitation
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
Source: NOAA 1991–2020 climate normals, Yosemite Valley
What's open
Open 24 hours; Tioga and Glacier Point roads close in winter; peak-season reservations
No seasonal road or area closures reported for this park.
Source: NPS Data API
Conditions
When the park is very busy, you can get updates on current traffic conditions in Yosemite by texting ynptraffic to 333111.
Source: NPS Data API
Context
Alternatives
FAQ
September rates 8/10 for crowds (Busy) at Yosemite National Park — about 77% of its busiest month. Typical recreation visits: 404,317.
In September, Yosemite averages a high of 83°F and a low of 49°F, with about 0.6 inches of precipitation.
Entrance to Yosemite costs $35 ($35 per private vehicle, valid 7 days).
Yosemite is quietest in January and February. If your dates are flexible, those months bring the thinnest crowds of the year.
In mid-September, Yosemite gets about 12.4 hours of daylight, with sunrise around 5:40 AM and sunset around 6:05 PM.