Best Time to Visit Great Sand Dunes National Park
The best months to visit Great Sand Dunes National Park are March, April and October — computed from official NPS visitation (2021–2025 average), NOAA weather normals and daylight. June is the crowd peak (94,559 monthly visits); January is quietest at 6% of peak.
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Monthly crowd curve
Average monthly recreation visits, 2021–2025 (NPS Visitor Use Statistics). Amber bar = current month.
Great Sand Dunes month by month
| Month | Verdict | Avg visits | % of peak | High / Low | Precip | Daylight |
|---|---|---|---|---|---|---|
| January | Shoulder | 5,413 | 6% | 33°F / 11°F | 0.6″ | 9.8h |
| February | Shoulder | 7,187 | 8% | 39°F / 16°F | 0.4″ | 10.8h |
| March | Best window | 19,654 | 21% | 49°F / 24°F | 0.9″ | 11.9h |
| April | Best window | 26,517 | 28% | 56°F / 29°F | 1.2″ | 13.2h |
| May | Peak crowds | 71,427 | 76% | 66°F / 38°F | 1.2″ | 14.2h |
| June | Peak crowds | 94,559 | 100% | 77°F / 48°F | 0.7″ | 14.8h |
| July | Peak crowds | 91,000 | 96% | 81°F / 52°F | 2.1″ | 14.5h |
| August | Peak crowds | 68,987 | 73% | 78°F / 50°F | 1.9″ | 13.6h |
| September | Shoulder | 50,483 | 53% | 72°F / 44°F | 1.3″ | 12.5h |
| October | Best window | 39,055 | 41% | 60°F / 33°F | 0.9″ | 11.3h |
| November | Shoulder | 12,982 | 14% | 46°F / 22°F | 0.5″ | 10.2h |
| December | Shoulder | 8,421 | 9% | 34°F / 12°F | 0.5″ | 9.6h |
Crowds: NPS Visitor Use Statistics, mean of 2021–2025 (2020 excluded as a COVID-19 anomaly). Weather: NOAA 1991–2020 monthly normals, station GREAT SAND DUNES NP & PRESERVE, CO US (7 mi from park coordinates). Daylight: computed for the 15th of each month at the park's location. Methodology.
How many people visit Great Sand Dunes each year
Great Sand Dunes National Park had 432,498 recreation visits in 2025, 1% fewer than 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2021, with 602,613. Over 2021–2025 it averaged 495,685 visits a year, which makes it the 22nd least-visited of the 63 national parks.
| Year | Recreation visits | vs. year before |
|---|---|---|
| 2025 | 432,498 | −1% |
| 2024 | 437,661 | −15% |
| 2023 | 512,219 | +4% |
| 2022 | 493,428 | −18% |
| 2021 | 602,613 | +31% |
| 2020 | 461,532 | −13% |
| 2019 | 527,546 | +19% |
| 2018 | 442,905 | −9% |
| 2017 | 486,935 | +25% |
| 2016 | 388,308 | +30% |
| 2015 | 299,513 | — |
Calendar-year recreation visits as published by NPS Visitor Use Statistics. 2020 is shown here but left out of the monthly averages above, because the COVID-19 pandemic makes it unrepresentative. See how every park compares: all 63 parks ranked by visits.
What to pack for Great Sand Dunes in March
Computed from March's weather normals — Great Sand Dunes's best month above. Visiting another month? Each month page has its own weather-computed list.
- Insulated jacket, beanie and gloves — nights average 24°F, below freezing
- Traction devices (microspikes) and gaiters — 9″ normal snowfall (compare other options)
- Insulated, waterproof boots — plus navigation and a basic first-aid kit — 9″ of snow is normal this month
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Common questions
What is the best month to visit Great Sand Dunes?
March, April and October rank best for Great Sand Dunes on VisitWhen's computed score — the strongest balance of low crowds (NPS data), comfortable weather (NOAA normals) and daylight.
What is the most crowded month at Great Sand Dunes?
June: an average of 94,559 recreation visits (NPS, 2021–2025). The quietest is January, at 6% of the June peak.
When is Great Sand Dunes least crowded with decent conditions?
January. It is the park's quietest month (6% of the June peak, 5,413 average visits) without harsh-season weather.
How many people visit Great Sand Dunes per year?
Great Sand Dunes National Park had 432,498 recreation visits in 2025, 1% fewer than 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2021, with 602,613. Over 2021–2025 it averaged 495,685 visits a year.
What is the weather like at Great Sand Dunes through the year?
The warmest month is July, with average highs of 81°F. The coldest nights come in January, averaging 11°F. The wettest month is July, with 2.1″ of precipitation. (NOAA 1991–2020 normals, GREAT SAND DUNES NP & PRESERVE, CO US station.)
Dive into a month
Comparing parks for the same trip? See how Great Sand Dunes ranks against all 63 parks in March, April and October.
Last verified 2026-09-24 · all parks