Great Sand Dunes National Park & Preserve in May
May at Great Sand Dunes National Park & Preserve averages a daytime high near 66°F and an overnight low around 38°F, with about 1.2" of precipitation and roughly 2" of snow. Visitation runs about 1.7× the park's average month, which makes May a very busy month here.
- Average low
- 38°F
- Average high
- 66°F
Range across the year: 11°F to 81°F
- Precipitation
- 1.2 in
- Snowfall
- 2 in
- Daylight
- 14.0 hours
Roughly 14% of the park's yearly visitors come in May: about 65,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 4th-busiest of the park's twelve months, sitting between the June peak (2.4×) and the January low (0.1×).
On our Best Time to Visit score May rates 46/100 ("Fair"). Our recommended month is September: the lightest crowds of the park's good-weather months.
The daily average of about 52°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 6 miles from the park.
Because June, July and August together draw about 53% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 14 hours of daylight in May to explore — between the 9.4-hour midwinter low and the 14.6-hour summer high.
Park-wide, 2025 drew 432,498 recreation visits, down 1.2% from 437,661 in 2024.
Across the past decade overall visitation has risen about 15.5%, so a May visit is likely to feel busier than it did a few years ago.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 56°F / 29°F | 0.6× Quiet | 47 Fair |
| May | 66°F / 38°F | 1.7× Very busy | 46 Fair |
| June | 77°F / 48°F | 2.4× Very busy | 50 Fair |
All twelve months at Great Sand Dunes, with the best time to visit.
Things to do at Great Sand Dunes in May
The National Park Service tags 6 Great Sand Dunes activities for spring. Each links to the park's own page for it.
- Splash in Medano Creek · 1-8 hours
- 4WD Medano Pass Primitive Road · 1-3 hours
- Experience the Night · 30-300 minutes
- Explore the Dunes
- Hike Montville Nature Trail or Mosca Pass Trail · 30-240 minutes
- Sandboarding and Sand Sledding · 2-8 hours
Frequently Asked Questions
May averages a daytime high near 66°F and an overnight low around 38°F at Great Sand Dunes National Park & Preserve, with about 1.2 inches of precipitation and roughly 2 inches of snow. These are 1991–2020 NOAA climate normals from the nearest station, about 6 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is very busy at Great Sand Dunes National Park & Preserve (about 1.7× the average month). Our best-time score rates it "Fair" at 46/100. Our recommended month is September.
The busiest month is June and the quietest is January. May sits at about 1.7× the park's average, or 14% of annual visitation.
A typical May sees about 65,000 recreation visits at Great Sand Dunes National Park & Preserve, based on National Park Service monthly counts from 1979–2025.
Where to stay near Great Sand Dunes in May
Booking a May trip to Great Sand Dunes National Park & Preserve? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Great Sand Dunes
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in May.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.