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15 Best National Parks to Visit in August

Looking for the best national parks to visit in August?

It’s your chance to squeeze in your last trips before the end of summer. Sure, you can visit many of the national parks any time of year, but we learned the hard way that some parks are only fully open in July and August, and some parks are plain miserable with the summer heat.

Learn from our mistakes. Here’s a monthly guide for visiting all the national parks at the most optimal times due to weather and accessibility.

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Last Updated: June 18, 2024

Before we get into it, we want to remind everyone to explore the parks responsibly using the 7 Leave No Trace Principles. Have a plan, stay on established trails, carry out anything you carry in, leave what you find, minimize campfire impact, respect wildlife, and be considerate of others.

About the National Park by month Series

To put together this list, we’ve combined our personal experiences and tips we gathered from locals and cross-referenced them with the weather, accessibility, local forums, seasonal attractions like fall foliage or wildflowers, and special events happening in the area. We also took into account any unique adventures only offered at certain times of the year to find the most optimal months to visit each National Park. Phew! that was a lot!

It took me a whole week of research, but since I’m a maximizer, it was completely worth having a year-round calendar of adventures (publishing that soon!). Also, check out our complete list of all the national parks and all national park units that include soon-to-be national parks.

We mostly stayed away from the hardest-to-access national parks in Alaska and the ones in U.S. territories in this series.

National Parks: Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul

15 Best National Parks to Visit in August

1. Mt Rainier National Park, Washington

Sunrise Park Rd, Ashford, WA 98304, map

Average Temperatures: 75°F / 46°F

Why Visit: July to August is the best time to visit Mt Rainier to catch it covered in a carpet of wildflowers. The weather is optimal for hiking, and the days are long. Plus, it’s one of the driest months of the year, so you’re more likely to get clear skies to see Rainier.

Best For / Top Activities: Hiking, Mountaineering, Photography

Don’t Miss:

  • To Do – Skyline Trail, Myrtle Falls, Comet Falls
  • Wildlife – Black Bears, Cougars, Coyotes, Red Foxes, Deer

Pro Tip: It’s crowded this time of year, so you should visit during the weekday or check out lesser-known areas if you’re going on the weekend, like the Mowich Lake Entrance.

See More: 15 Best Weekend Getaways from Seattle WA

Christine Falls Mt RainierPin

2. Crater Lake National Park, Oregon‎ →

Crater Lake National Park, Rim Village, OR 97604, map

Average Temperatures: 69°F / 41°F

Why Visit: Visiting from July to September is ideal because all the roads and facilities are typically open and the weather is warm. On our first visit, we went in June, and half of the park loop was closed due to snow (they average 40 feet of snow each year). Since snowfall and snowmelt can vary year to year, check their website for closures.

Best For / Top Activities: Hikers and Backpackers, Tours, Photography, Scenic Drives, Swimming

Don’t Miss:

  • To Do – Rim Drive, Boat Tour, Visit Wizard Island
  • Wildlife – Black Bears, Porcupines, Elks, Coyotes, Mazama Newt

Pro Tip: Be prepared for chilly water if you plan to swim!

See More: The Ultimate Guide to Crater Lake National Park

Things to Do at Crater Lake National ParkPin

3. North Cascades National Park, Washington‎ →

376 Newhalem St, Marblemount, WA 98267, map

Average Temperatures: 54°F / 30°F

Why Visit: We visited North Cascades and did the scenic drive, which has a few notable spots. To truly experience and access most of the park, however, you must hike in. August is a great time to visit because the weather is warmer, and it’s still not crowded since it’s one of the least visited national parks in the US.

Best For / Top Activities: Hikers / Backpackers, Fishing

Don’t Miss:

  • To Do – Scenic Drive along North Cascades Highway, Cascade Pass, Sahale Arm, Washington Pass Overlook, Diablo Lake Vista Point, Stehekin
  • Wildlife – Black Bears, Gray Wolves, Elks, Beavers, Bobcats
  • How many days do you need? 1-3

Pro Tip: Plan ahead since you can only access Stehekin Valley by foot, boat, or plane.

See More: 7 Best Things to Do in North Cascades National Park

4. Kings Canyon & Sequoia National Park, California‎ →

47050 Generals Hwy, Three Rivers, CA 93271, map

Average Temperatures: Kings Canyon 70°F / 32°F || Sequoia 71°F / 44°F

Why Visit: Kings Canyon and Sequoia National Parks are next to each other, so most people visit both parks in one visit. The weather is amazing from June to August, but you’ll get fewer visitors in August than in June and July.

Best For / Top Activities: Hikers / Backpackers, Scenic Drive, Photography, Swimming

Don’t Miss:

  • To Do – Grant Drove, Kings Canyon Scenic Byway, General Sherman Tree, Moro Rock
  • Wildlife – Coyotes, Badgers, Black Bears, Deer, Wolverines, Beavers

Pro Tip: On warm days, jump in the river at Road’s End.

See More: 15 Amazing Things to Do in Sequoia and Kings Canyon National Park

5. Glacier National Park, Montana‎ →

Logan’s Pass Visitor Center, Browning, MT 59417, map

Average Temperatures: 70°F / 45°F

Why Visit: July and August are the best in terms of weather to visit Glacier National Park since everything is open. The main road into the park is closed most of the year. Although both months are crowded, August is less crowded than July.

Best For / Top Activities: Scenic Drive, Hiking / Backpacking, Kayaking, Tours, Fishing, Wildlife Viewing

Don’t Miss:

  • To Do – Going-to-the-Sun Road (requires a permit), Red Bus Tour, Lake McDonald, Goose Island (from The Shining)
  • Wildlife – Deer, Marmots, Mountain Goats, Big Horned Sheep, Grizzly Bears, Black Bears

Pro Tip: Some people say you should go in September, since you may also get a chance to see fall colors. It’s cooler, and much less crowded since school will have started back up, but you risk parts of the park closing due to weather. Be sure to check the conditions before you go.

See More: 9 Incredible Things to Do in Glacier National Park

Top Glacier National Park Hikes + 9 Incredible Things to do in Glacier National ParkPin

6. Isle Royale National Park, Michigan

800 E Lakeshore Dr, Houghton, MI 49931, map

Average Temperatures: 71°F / 55°F

Why Visit: Isle Royale is made up of over 400 islands. Because of its location, you can only visit from mid-April to late October. Though July-Aug is peak season, it’s still not that busy since it’s one of the least visited national parks in the US.

Best For / Top Activities: Hikers / Backpackers, Camping, Fishing, Canoeing, Kayaking, Scuba Diving

Don’t Miss:

  • To Do – Ferry Ride, Greenstone Ridge Trail, Tour the 3 Lighthouses
  • Wildlife – Moose, Wolves, Elk, Snowshoe Hares, Foxes, Mink, Beavers

Local Tip: Locals prefer June/early fall shoulder season because it’s quieter.

See More: List of National Parks by State

isle royale lighthouse national parkPin

7. Kenai Fjords National Park, Alaska

1212 4th Ave, Seward, AK 99664, map

Average Temperatures: 48°F / 35°F

We’re planning to go this August, and we can’t wait!

Why Visit: Like many of these other parks in the PNW, the weather is best in July and August (slightly less crowded in August). Kenai Fjords is known for Harding Icefield, the largest icefield entirely within the US.

Best For / Top Activities: Wildlife Viewing, Cruises, Hikers, Kayaking, Ice Climbing

Don’t Miss:

  • To Do – Exit Glacier, Wildlife Cruise, Glacier Kayaking
  • Wildlife – Moose, Black Bears, Brown Bears, Wolves, Sea Lions, Seals, Dolphins, Humpback Whales, Orcas, Sea Otters, Bald Eagles, Peregrine Falcons, Tufted and Horned Puffins

Pro Tip: Exit Glacier is the only portion of the park accessible by road. If you don’t have much wilderness training, hire an outfitter to take you to other areas of the park.

See More: 9 Breathtaking Things to Do in Seward Alaska

kenai fjords national park cruisePin

8. Lassen Volcanic National Park, California

38050 Hwy 36 E, Mineral, CA 96063, map

Average Temperatures: 75°F / 41°F

Why Visit: See steaming fumaroles, flower-filled meadows, and clear alpine lakes at Lassen Volcanic. August is a great time to visit because the roads are open, and it’s less crowded than July. We missed much of the park on our visit because it was still closed.

Best For / Top Activities: Hiking, Scenic Drives, Swimming, Kayaking

Don’t Miss:

  • To Do – Bumpass Hell Trail, Lassen Peak, Lassen Park Highway, Manzanita Lake, Kings Creek Falls, Devils Kitchen
  • Wildlife – Black Bear, Bobcat, Mountain Lion, Coyote, Fox, Skunk

See More: 15 Least Visited National parks You Need to Explore Next

Lassen Volcanic National ParkPin

9. Rocky Mountain National Park, Colorado

1000 US-36, Estes Park, CO 80517, map

Average Temperatures: 66°F / 44°F

Why Visit: Hiking is great from June to September since the snow is mostly melted. There are over 300 miles of trails, but if you want a more leisurely experience, the Scenic Drives are also great.

Best For / Top Activities: Hikers / Backpackers, Wildlife Viewing, Scenic Drives, Stargazing

Don’t Miss:

  • To Do – Trail Ridge Road, Sprague Lake, Bear Lake Road, Alpine Ridge Trail, Emerald Lakes, Alberta Falls
  • Wildlife – Elk, Moose, Bighorn Sheep, Mountain Lions, Deer, Bears, Bobcats

Pro Tip: To explore Bear Lake Road, you must obtain a permit.

See More: Your Complete List of All National Parks in the US

10. Denali National Park, Alaska‎ →

Park Rd, Denali National Park and Preserve, AK 99755, map

Average Temperatures: 61°F / 46°F

Why Visit: Long days and warmer weather make August a great time to visit Denali. It’s also drier so you can hopefully catch glimpses of Mount Denali not shrouded in clouds. Only one road leads to the park’s center, but this is also one of the few national parks in Alaska you can drive to. During the summer, shuttle buses run up and down Denali Park Road.

Best For / Top Activities: Hikers / Backpackers, Scenic Drive, Wildlife Viewing, Photography, Tours

Don’t Miss:

  • To Do – Tundra Wilderness Tour, Flightseeing Tour, Canine Rangers
  • Wildlife – Dall Sheep, Moose, Caribou, Wolves, Grizzly Bears, Foxes

Pro Tip: Private vehicles can only drive for the first 15 miles (except for rare circumstances like the Denali Road lottery which is very difficult to get). Beyond this point, you will have to ride the park shuttle.

See More: 17 Unforgettable Things to Do in Denali National Park

Best Things to Do in Denali National Park AlaskaPin

11. Olympic National Park, Washington‎ →

3002 Mt Angeles Rd, Port Angeles, WA 98362, map

Average Temperatures: 62°F / 44°F

Why Visit: August is a busy time at Olympic National Park but for good reason. The weather is great, and it’s typically drier. There’s never a guarantee for clear skies since it rains year-round in this temperate rainforest, but heavy downpours usually start later in the year.

Best For / Top Activities: Hiking / Backpacking, Tidepools, Scenic Drives, White Water Rafting, Kayaking

Don’t Miss:

  • To Do – Hurricane Ridge, Hoh Rainforest, Rialto Beach, Storm King, Sol Duc Falls, Shi Shi Beach
  • Wildlife – Deer, Elk, Cougars, Bears, Beaver, Mink, Salmon

Pro Tip: It’s always smart to have a raincoat with you just in case.

See More: 15 Things to Do in Olympic National Park

Hall of Mosses Olympic National ParkPin

12. Apostle Islands National Park, Wisconsin

415 Washington Ave, Bayfield, WI 54814, map

Average Temperatures: 76°F / 55°F

Why Visit: Apostle Islands comprises 21 islands with beautiful beaches and trails. August is an amazing time to visit because you enjoy the weather and water. Of course, there is some great hiking as well.

Best For / Top Activities: Hikers / Backpackers, Water Sports, Kayak, Scuba Dive, Fishing, Boating

Don’t Miss:

  • To Do – Mainland Lakeshore Trail, Meyers Beach, Kayak to Sea Caves, Apostle Islands Cruise
  • Wildlife – Bears, Otters, Coyotes, Deer, Vole
kayaking in apostle islandsPin

13. Channel Islands National Park, California →

1901 Spinnaker Dr, Ventura, CA 93001, map

Average Temperatures: 72°F / 57°F

Why Visit: Explore the five islands of the Channel Islands in August to enjoy the warmer weather, especially if you’re doing water activities. It’s also a great time to see Blue and Humpback Whales.

Best For / Top Activities: Hiking, Kayaking, Snorkeling, Diving

Don’t Miss:

  • To Do – Whale Watching, Kayaking to Sea Caves, Pelican Bay Trail, Fishing, Snorkeling / Diving
  • Wildlife – Whales (Blue, Humpback, Fin, Gray), Orcas, Dolphins, Sea Lions, Elephant Seals, Island Fox, Skunks
  • How many days do you need? 1-3

Pro Tip: Watch out for the local foxes. They’re cute but sneaky, and they will come to steal your food.

See More: Kayaking Channel Islands National Park

Channel Islands KayakingPin

14. Great Basin National Park, Nevada‎ →

100 Great Basin, Baker, NV 89311, map

Average Temperatures: 76°F / 51°F

Why Visit: Great Basin in August is a great time to explore the park (you get great hiking weather from May-Sep). The weather makes it ideal for climbing the second-highest peak in Nevada, touring Lehman Caves, and seeing wildlife and wildflowers. It’s also a national park known for stargazing, and August is a great month to see the Milky Way.

Best For / Top Activities: Hikers / Backpackers, Stargazing

Don’t Miss:

  • To Do – Bristlecone Trail, Lehman Caves, Wheelers Peak, Stella Lake
  • Wildlife – Water Shrews, Voles, Porcupines, Beavers, Ringtail Cats, Marmots, Bobcats, Mountain Lions

Local Tip: If you’re super into astronomy, visit in September when they have their annual Astronomy Festival.

See More: 7 Things You Can’t Miss in Great Basin National Park

Hiking Great Basin National ParkPin

15. Gates of the Arctic National Park & Preserve, Alaska

101 Dunkel St, Fairbanks, AK 99701, map

Average Temperatures: 63°F / 44°F

Why Visit: If you’re looking for a true adventure, this is it. Gates of the Arctic is the least visited National Park in the US, and you pick your own adventure since there are no roads, no established trails, or campsites. Summer (mid-June to September) is your best and only option.

Best For / Top Activities: Backpackers (Hikers), Fishing, Climbers, Experienced Pack Rafters/Canoers.

Don’t Miss:

  • To Do – Hiking and Backpacking, Rock Climbing/Mountaineering. For the less adventurous, you can do fly-over tours and stay the night in Anaktuvuk Pass.
  • Eat – There are no food services in the park. make sure you pack it in (and out, obviously), and needs to be properly stored in an approved bear-resistant food container.
  • Stay – Only backcountry camping.
  • Wildlife – Grizzly Bears, Wolves, Muskox, Caribou, Moose, Wolverine, Fox, Dall Sheep

Pro Tip: This is truly untouched wilderness, and visitors should be proficient in outdoor survival skills.

how to visit gates of the arctic national parkPin

Tips for Visiting National Parks in August

  • Pick up a National Park Annual Pass if you plan on visiting multiple parks within the year.
  • It’s always a good idea to pack layers wherever you go. Some parks are warm during the day and cool at night or may vary in temperature depending on elevation changes.
  • See which national parks now require reservations here.
  • Always check the park’s website and Visitors Center for the most up-to-date information on closures.
  • Explore the parks responsibly using Leave no Trace principles. Stay on established trails, carry out anything you carry in, etc.
  • Remember that wildlife is wild. Be familiar with how to interact with animals and how much space you should have between you and them.
grand canyon things to doPin

What to Pack

How you will pack depends on what you will be doing and which park you’re visiting, but here is a general guide on items we always try to pack.

Want to know what to wear to the airport? Here’s my ideal airport outfit and our carry-on essentials for every flight.

Frequently Asked Questions


Yes, many parks are busiest in the summer, and August is the tail end of that. Not all schools have started yet, so some parks will still be busy.


It depends on what you want to do! Our list comprises parks you should visit because of the weather and accessibility.


Gates of the Arctic National Park is the hardest since it is true wilderness. It’s also the least visited park.


Each National Park has the best time to visit. It’s best to do research specifically do that park. We typically like visiting during shoulder seasons to get decent weather but fewer crowds.


The Grand Canyon is open year-round. August is a really hot time to visit with temps well over 100. You can visit, but it’s not ideal.


July and August are the best time to visit Glacier National Park but that also means it’s the busiest time.


If you are factoring in travel, the cheapest national park is the park closest to you! If you love National Parks, pick up an Annual Pass to save on entrance fees.


Check out blogs (like ours) and review National Park’s website for up-to-date info. Then check if reservations, permits, or bookings are required to start planning ahead. We prefer to plan one main activity a day, then have a list of other things we want to check out that we leave flexible.


Typically July and August are the peak months for most National Parks but not all.


Would you look at that! We have a blog post about all the parks that require reservations.

Recap of the 15 Best National Parks to Visit in August

August is a great time to explore the National Parks. You get to take advantage of summer weather and some schools have started back up so it will be a bit less crowded than at the height of summer. Here is the list of parks we recommend visiting.

  1. Mt Rainier National Park (post coming soon!)
  2. Crater Lake National Park
  3. North Cascades National Park
  4. Kings Canyon & Sequoia National Park
  5. Glacier National Park
  6. Isle Royale National Park
  7. Kenai Fjords National Park
  8. Lassen Volcanic National Park (post coming soon!)
  9. Rocky Mountain National Park (post coming soon!)
  10. Denali National Park
  11. Olympic National Park
  12. Apostle Islands National Park
  13. Channel Islands National Park
  14. Great Basin National Park
  15. Gates of the Arctic National Park

National Parks: Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul

Can you think of others that belong on this list of best national parks to visit in August? Which ones are we missing?


Esther and JacobPin

Esther + Jacob

Esther and Jacob are the founders of Local Adventurer, one of the top 5 travel blogs in the US. They believe that adventure can be found near and far and hope to inspire others to explore locally. They explore a new city in depth every year and currently base themselves in Las Vegas.

Follow on Instagram (E + J), YouTube, TikTok, and Pinterest.

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