September is a good month at Black Canyon of the Gunnison — it ranks 8th of the twelve here. Days run around 72°F by afternoon and 44°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 | 47,222 | −2% | 72°F | 44°F | — | 12.4 h |
| April (best) | Excellent | 12,369 | −74% | 56°F | 29°F | — | 13.2 h |
| June (peak crowds) | Good | 48,408 | peak | 76°F | 46°F | — | 14.8 h |
Weather figures are for the South Rim area — the Black Canyon Of The Gunnison 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 Black Canyon of the Gunnison?
It is a reasonable month — the park has stronger ones, but the records don't argue against it. September ranks 8 of 12 at Black Canyon of the Gunnison on crowds, weather, daylight, and access together.
How crowded is Black Canyon of the Gunnison in September?
About 47,222 recreation visits on average — 2% below June, the park's peak.
How warm is Black Canyon of the Gunnison in September?
Average highs around 72°F and lows around 44°F at the Black Canyon Of The Gunnison station.
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