Zion National Park in September
In September, Zion National Park averages a high of 91°F and a low of 61°F, with 1.2 inches of precipitation (rain plus melted snow). About 491,000 people visit, the 5th busiest of 12 (very busy). Days are 12 hours 23 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 91° / 61°F
- Precipitation
- 1.2in
- Snow
- 0in
- Daylight
- 12h 23m
- Visitors
- 491,000
- Crowds
- Very busy
Best months for weather and crowds instead: April (very busy), October (very busy) and November (moderate).
Higher or lower in the park, expect a different picture: Cedar City 5E, UT at 6,465 ft averages a September high of 77°F and a low of 47°F.
Weather 1991–2020 averages at Zion NP, UT, 6 miles from the park's center, 4,038 ft. Second station higher up: Cedar City 5E, UT, 6,465 ft, 26.2 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Bryce Canyon National Park | 70° / 42° | Very busy | Mild, wet |
| Grand Canyon National Park | 76° / 44° | Very busy | Mild, wet |
| Lake Mead National Recreation Area | 97° / 72° | Very busy | Very hot |
| Capitol Reef National Park | 80° / 55° | Very busy | Mild, wet |
| Glen Canyon National Recreation Area | 88° / 60° | Busy | Hot |
Closures, reservations and alerts: Zion National Park on nps.gov
All twelve months at Zion · National parks to visit in September