Parks by Month
Start from the month you already have, not the park you want. Pick a month, pick what you are going for, and read down the list.
Road and permit facts change every year · check nps.gov before you goJuly
The Alaska and Pacific Northwest month, and also the most crowded and most expensive. The Southwest monsoon begins in the second week.
Light quality, atmosphere, colour events, dark-sky windows, subject availability. Crowds only count where they block a position.
strongGlacierMontana+
Beargrass bloom and Going-to-the-Sun fully open — the only window with everything running at once.
strongGlacier BayAlaska+
Warmest and driest of a genuinely wet climate, at the busiest point of the cruise season.
strongLake ClarkAlaska+
Salmon arrive and the bear viewing shifts to the streams, with the most reliable flight weather.
strongMount RainierWashington+
Snow still melting out of the high meadows, but the lower waterfalls are running hard and Sunrise may open late in the month.
strongRedwoodCalifornia+
The one major park where fog is the asset rather than the obstacle — direct sun blows out the canopy and flattens everything, so the grey months are the good months.
strongGreat BasinNevada+
Wheeler Peak Scenic Drive fully open and the bristlecone grove is an easy walk from the trailhead.
strongIsle RoyaleMichigan+
Reliable ferry schedules and the warmest stretch, which matters when everything is carried in.
strongKenai Fjords →AlaskaIn my portfolio+
Peak whale and puffin activity on the Aialik Bay tours, with the calmest seas of the year.
strongKobuk ValleyAlaska+
Arctic sand dunes above the Arctic Circle with no roads, no trails and no facilities, where the one scheduled event of the year is the caribou migration crossing the river.
strongNorth CascadesWashington+
Waterfalls at volume and the valley trails open, with high country still holding snow.
strongRocky Mountain →ColoradoIn my portfolio+
Full alpine access and the longest days, with a timed entry reservation as a hard prerequisite.
strongWrangell-St. EliasAlaska+
Kennecott tours at full schedule and the rivers at runnable levels.
workableDenaliAlaska+
Full bus schedule and the most reliable logistics, at peak cruise-tour volume.
workableGates of the ArcticAlaska+
Warmest and longest days, and the worst insect conditions of the Arctic summer.
| Park or item | Status | What it means |
|---|---|---|
| Rocky Mountain | Timed entry, 22 May – 12 Oct 2026 | The only park still requiring a reservation to enter during peak hours. 9am–2pm park-wide; Bear Lake Road corridor needs its own 5am–6pm permit. Released monthly on rec.gov. |
| Arches, Glacier, Mount Rainier, Yosemite | Timed entry dropped for 2026 | All four discontinued entry reservations for the 2026 season. None has said the change is permanent, so re-check before a 2027 trip. |
| Glacier — Logan Pass | Three-hour parking limit and ticketed shuttle from 1 Jul 2026 | Going-to-the-Sun no longer needs a vehicle reservation, but Logan Pass parking is capped at three hours and Highline Trail hikers need a shuttle ticket from rec.gov. |
| Going-to-the-Sun Road | Opened 22 June in 2026 | The single most-missed date in park planning. Historical full-opening range is late June to mid-July. Anything booked for early June is a gamble on the lower valleys only. |
| Tioga Road, Yosemite | Opened 15 May in 2026 | An unusually early opening after a mild winter. The normal range is late May into June, with closure in November. Do not plan Tuolumne on a May date without checking. |
| Grand Canyon North Rim | Reopened 15 May 2026, day-use season | After the 2025 Dragon Bravo Fire the North Rim reopened with no lodge, no potable water and no fuel. Campground ran to 15 October. Verify the current season before committing. |
| Crater Lake — Cleetwood Cove | Closed 2026, 2027 and 2028 | The only legal lakeshore access is closed for a multi-year rehabilitation, which means no boat tours, no Wizard Island landings and no swimming until a planned 2029 reopening. The rim is unaffected. |
| Denali Park Road | Mile 43 turnaround through the 2026 season | The Pretty Rocks Bridge was completed in September 2026 and full bus service to Eielson, Wonder Lake and Kantishna is expected to resume in 2027. Private vehicles stay limited to Mile 15. |
| Acadia — Cadillac Summit Road | Vehicle reservation, roughly late May – late Oct | $6 per vehicle on rec.gov, and sunrise slots go first. The rest of the park needs no reservation. |
| Haleakala — summit sunrise | Reservation for 3am–7am entry, year-round | Released sixty days ahead with a second release forty-eight hours out. Daytime entry needs nothing. |
| Carlsbad Caverns | Timed cave-entry ticket, year-round | The only reservation in the system guarding something underground. Book the entry window on rec.gov; the entrance fee is separate. |
| Shenandoah — Old Rag | Day-use ticket, 1 Mar – 30 Nov | Applies to the Old Rag area only. Skyline Drive itself is open access. |
| Great Smoky Mountains | Parking tag required over 15 minutes | Entry is free, but parking beyond fifteen minutes needs a $5 daily, $15 weekly or $40 annual tag. This is not a reservation and is not covered by any pass. |
| Yellowstone | No vehicle reservation, staged seasonal road openings | Roads open in stages across April and May. The South Entrance is the Grand Teton connector and is among the later ones, so an early-May trip risks the two parks not being joined. |
| Isle Royale | Closed 1 Nov – 15 Apr | The only national park that closes outright for the winter. |
| Dry Tortugas | Ferry or seaplane only, sells out months ahead | Roughly two and a half hours each way. Spring dates book out furthest in advance and crossings cancel in high seas. |
| Nonresident surcharge | $100 per person at 11 parks, from 1 Jan 2026 | Applies to non-US residents aged 16+ at Acadia, Bryce Canyon, Everglades, Glacier, Grand Canyon, Grand Teton, Rocky Mountain, Sequoia and Kings Canyon, Yellowstone, Yosemite and Zion. A $250 nonresident annual pass waives it. |