July: Long days, wildflowers on the tundra and the best odds of seeing North America's tallest peak on clear days. Grizzlies, caribou and Dall sheep are visible from the park road.
September: Early September brings peak tundra color (red blueberry, gold willow), clearer skies and a good chance of an early aurora. Bus service winds down mid-month.
Permits and reservations
No entry reservation. Going deep into the park by bus or backpacking takes tickets or permits (below).
Backcountry permit: Backpacking permits are issued only in person, no more than a day before your trip, after everyone in your party attends a backcountry orientation. Climbing permits are required for Denali (Mount McKinley) and Mount Foraker.
Park road buses & camping: Free Savage River and Riley Creek shuttles need no tickets. Wonder Lake Campground is closed through 2026 (Pretty Rocks project). Backpackers need a backcountry permit before buying camper bus tickets. The road lottery is suspended.