Colorado's National Parks
Alpine tundra, North America's tallest dunes, a sheer black canyon and ancient cliff dwellings.
Best time to visit · Colorado
Best Time to Visit Great Sand Dunes National Park
North America's tallest sand dunes, with a seasonal creek that becomes a beach.
The best time to visit Great Sand Dunes National Park is May–June and September. For great conditions with fewer people, aim for September. It's busiest in May through July.
Month by month
Best monthsMay–Jun, Sep
Best valueSep
BusiestMay–Jul
Established2004
Great Sand Dunes by season
Winter Fair
Snow on the dunes is spectacular and you'll be nearly alone. Cold, but sunny.
Spring Good
Medano Creek flows at the base of the dunes, usually peaking from late May to early June. It's a family favorite for splashing.
Summer Good
The sand surface can reach 150°F on summer afternoons. Hike the dunes at dawn or dusk.
Fall Good
Calm, crisp and golden, with aspens turning in the mountains above.
What to do
- Climb High Dune
- Splash in Medano Creek (spring)
- Sandboard or sled the dunes (rentals outside the park)
- Hike to Zapata Falls
- Watch the stars from the dunes
Local tip
Wear shoes on the dunes in summer; the sand can burn bare feet. Start dune hikes by 9 a.m.
Good to know
Great Sand Dunes has the tallest dunes in North America; Star Dune rises about 750 feet.
Before you go: Medano Pass Primitive Road requires high-clearance 4x4. Check current conditions on nps.gov.
Getting there
Closest major airport: Colorado Springs (COS), about 2.5–3 hours.
Nearby national parks
Approximate driving distance. Check a map for exact routes.
Where to stay
Great Sand Dunes month-by-month ratings
| Month | Rating | Crowds | Notes |
|---|---|---|---|
| January | Fair | Quiet | |
| February | Fair | Quiet | |
| March | Fair | Moderate | |
| April | Good | Moderate | |
| May | Prime | Peak crowds | Prime season starts |
| June | Prime | Peak crowds | Last prime month |
| July | Good | Peak crowds | |
| August | Good | Busy | |
| September | Prime | Moderate | Prime season starts · Last prime month · Best value |
| October | Good | Moderate | |
| November | Fair | Quiet | |
| December | Fair | Quiet |
Road trips with Great Sand Dunes
Questions about visiting Great Sand Dunes
When is the best time to visit Great Sand Dunes National Park?
The best time to visit Great Sand Dunes National Park is May–June and September. For great conditions with fewer people, aim for September. It's busiest in May through July.
What is the worst time to visit Great Sand Dunes National Park?
November through March are the weakest time, when conditions are at their worst.
When is Great Sand Dunes National Park most crowded?
Crowds peak in May through July. September offers the best balance of good conditions and fewer people.
Is Great Sand Dunes National Park worth visiting in winter?
Snow on the dunes is spectacular and you'll be nearly alone. Cold, but sunny.
Do you need a reservation for Great Sand Dunes National Park?
Medano Pass Primitive Road requires high-clearance 4x4. Always check the official NPS page for the current year's rules.
What is the closest airport to Great Sand Dunes National Park?
The most convenient airport is Colorado Springs (COS), about 2.5–3 hours.
How many days do you need at Great Sand Dunes National Park?
Most road trips spend 1 to 2 days here.
More in Rocky Mountains & Plains · National parks in Colorado · Season calendar
Last reviewed October 4, 2026. Ratings are editorial. Rules and road openings change each year, so confirm on the official NPS site before you go.