September is a good month at Zion — it ranks 9th of the twelve here. Expect about 21% fewer visitors than June, the park's peak — 476,048 visits on average. Days run around 91°F by afternoon and 61°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 | 476,048 | −21% | 91°F | 61°F | 0" | 12.4 h |
| February (best) | Excellent | 153,173 | −75% | 58°F | 34°F | 0.8" | 10.8 h |
| June (peak crowds) | Tough | 601,680 | peak | 95°F | 62°F | 0" | 14.7 h |
Weather figures are for the Springdale / canyon floor area (the canyon traps summer heat) — the Zion NP 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 Zion?
It is a reasonable month — the park has stronger ones, but the records don't argue against it. September ranks 9 of 12 at Zion on crowds, weather, daylight, and access together.
How crowded is Zion in September?
About 476,048 recreation visits on average — 21% below June, the park's peak.
How warm is Zion in September?
Average highs around 91°F and lows around 61°F at the Zion NP station.