Great Sand Dunes in December: Crowds, Weather & What to Pack
Shoulder · VisitWhen score 57/100 · #12 of 12 months
December is a quiet month with trade-offs at Great Sand Dunes National Park: crowds run 9% of the June peak (8,421 average visits). Weather: highs average 34°F and lows 12°F, with 0.5″ of precipitation and 9.6 hours of daylight. Computed from NPS and NOAA data.
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Bring for Great Sand Dunes in December
- Insulated parka + thermal base layersSee it on AmazonWhy: average lows of 12°F.
- Traction devices (microspikes) and gaitersSee it on AmazonWhy: 7″ normal snowfall.
- HeadlampSee it on AmazonWhy: only 9.6 hours of daylight in mid-December.
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Crowds in December
Great Sand Dunes averages 8,421 recreation visits in December — 9% of what June, the peak month, draws — the third-quietest month of the year. Plan lodging and entries with that in mind — crowds are thin by this park's standards.
Weather & daylight
Expect cold conditions (highs average 34°F), and nights are frigid (lows average 12°F). It is typically dry (0.5″ of precipitation). Normal snowfall is 7″ — expect snow on the ground. Mid-month daylight runs 9.6 hours.
NOAA 1991–2020 monthly normals, station GREAT SAND DUNES NP & PRESERVE, CO US (7 mi from park coordinates, 8,183 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of December.
What to pack for Great Sand Dunes in December
Computed from the month's weather normals above — not a generic list.
- Insulated parka + thermal base layers — average lows of 12°F
- Traction devices (microspikes) and gaiters — 7″ normal snowfall (compare other options)
- Headlamp — only 9.6 hours of daylight in mid-December (compare other options)
- Insulated, waterproof boots — plus navigation and a basic first-aid kit — 7″ of snow is normal this month
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Looking for a better window? The computed best months for Great Sand Dunes are March and April.
Also at their best in December
Other parks whose computed December verdict is a best window — same NPS × NOAA formula:
- American Samoa in December — 17% of peak crowds, highs 88°F, score 66/100
- Everglades in December — 72% of peak crowds, highs 80°F, score 64/100
- Biscayne in December — 77% of peak crowds, highs 80°F, score 62/100
Common questions
Is Great Sand Dunes crowded in December?
No — December is one of the quieter months: 9% of the June peak, averaging 8,421 visits (NPS, 2021–2025).
What is the weather like in Great Sand Dunes in December?
Average highs of 34°F, lows of 12°F, 0.5″ of precipitation (NOAA 1991–2020 normals, GREAT SAND DUNES NP & PRESERVE, CO US station).
What should I pack for Great Sand Dunes in December?
Insulated parka + thermal base layers; Traction devices (microspikes) and gaiters; Headlamp — the full weather-computed list is on this page.
See also: the best national parks to visit in December · Last verified 2026-09-24