Denali National Park in September
In September, Denali National Park averages a high of 50°F and a low of 33°F, with 2.2 inches of precipitation (rain plus melted snow). About 48,000 people visit, the 4th busiest of 12 (moderate). Days are 12 hours 52 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 50° / 33°F
- Precipitation
- 2.2in
- Snow
- –in
- Daylight
- 12h 52m
- Visitors
- 48,000
- Crowds
- Moderate
Best months for weather and crowds instead: June (very busy), July (very busy) and August (very busy).
Weather 1991–2020 averages at Denali 27 N, AK, 12.1 miles from the park's center, 2,225 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Lake Clark National Park | 58° / 44° | Quiet | Mild, wet |
| Kenai Fjords National Park | 56° / 43° | Quiet | Mild, wet |
| Wrangell-St. Elias National Park | 55° / 33° | Quiet | Mild, wet |
| Katmai National Park | 54° / 39° | Moderate | Cool |
| Glacier Bay National Park | 54° / 43° | Busy | Cool |
Closures, reservations and alerts: Denali National Park on nps.gov
All twelve months at Denali · National parks to visit in September