September is a good month at Yosemite — it ranks 10th of the twelve here. Expect about 12% fewer visitors than August, the park's peak — 472,983 visits on average. Days run around 83°F by afternoon and 51°F at night, with 12.4 hours of daylight.
September against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| September (this page) | Good | 472,983 | −12% | 83°F | 51°F | — | 12.4 h |
| March (best) | Excellent | 136,081 | −75% | 57°F | 34°F | — | 11.8 h |
| August (peak crowds) | Tough | 537,020 | peak | 89°F | 57°F | — | 13.6 h |
Weather figures are for Yosemite Valley (4,000 ft — the high country runs much colder) — the Yosemite Park HQ station. Visits are 2021–2025 averages; climate normals cover 1991–2020. Conditions vary across the park; check current status before you go.
Common questions
Is September a good time to visit Yosemite?
It is a reasonable month — the park has stronger ones, but the records don't argue against it. September ranks 10 of 12 at Yosemite on crowds, weather, daylight, and access together.
How crowded is Yosemite in September?
About 472,983 recreation visits on average — 12% below August, the park's peak.
How warm is Yosemite in September?
Average highs around 83°F and lows around 51°F at the Yosemite Park HQ station.
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