Katmai National Park in August
In August, Katmai National Park averages a high of 61°F and a low of 45°F, with 4.4 inches of precipitation (rain plus melted snow). About 11,000 people visit, the 2nd busiest of 12 (busy). Days are 15 hours 24 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 61° / 45°F
- Precipitation
- 4.4in
- Snow
- –in
- Daylight
- 15h 24m
- Visitors
- 11,000
- Crowds
- Busy
August is one of the best months to visit: mild, wet weather with busy crowds.
Weather 1991–2020 averages at King Salmon 42 SE, AK, 36.9 miles from the park's center, 661 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in August
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Lake Clark National Park | 67° / 50° | Very busy | Mild, wet |
| Kenai Fjords National Park | 62° / 50° | Very busy | Mild |
| Denali National Park | 60° / 43° | Very busy | Mild, wet |
| Wrangell-St. Elias National Park | 67° / 42° | Busy | Mild, wet |
| Glacier Bay National Park | 60° / 48° | Very busy | Mild, wet |
Closures, reservations and alerts: Katmai National Park on nps.gov
All twelve months at Katmai · National parks to visit in August