Lake Clark National Park in September
In September, Lake Clark National Park averages a high of 58°F and a low of 44°F, with 7.3 inches of precipitation (rain plus melted snow). About 1,600 people visit, the 4th busiest of 12 (quiet). Days are 12 hours 47 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 58° / 44°F
- Precipitation
- 7.3in
- Snow
- –in
- Daylight
- 12h 47m
- Visitors
- 1,600
- Crowds
- Quiet
Best months for weather and crowds instead: June (busy) and July (very busy).
Weather 1991–2020 averages at Big River Lakes, AK, 36.2 miles from the park's center, 60 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Kenai Fjords National Park | 56° / 43° | Quiet | Mild, wet |
| Katmai National Park | 54° / 39° | Moderate | Cool |
| Denali National Park | 50° / 33° | Moderate | Cool |
| Wrangell-St. Elias National Park | 55° / 33° | Quiet | Mild, wet |
| Glacier Bay National Park | 54° / 43° | Busy | Cool |
Closures, reservations and alerts: Lake Clark National Park on nps.gov
All twelve months at Lake Clark · National parks to visit in September