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Great Sand Dunes National Park (CO) Climate by Month

The climate in Great Sand Dunes National Park is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It maintains fairly dry conditions year-round. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

In Great Sand Dunes National Park, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 27°C in July to a very cold 0°C in January. Nighttime temperatures can drop, with averages reaching -13°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Great Sand Dunes National Park typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 282 mm. The seasons in Great Sand Dunes National Park, bring significant changes in precipitation. The wettest month, July, receives moderate rainfall, with an average of 49 mm of precipitation. This rainfall is distributed across 14 rainy days. In contrast, the driest month, January, experiences much less snowfall, totaling 8.3 mm over 4 snowy days. These distinct seasonal differences provide diverse experiences throughout the year.

The mean monthly precipitation over the year, including rain, hail and snow

The best time of year to visit Great Sand Dunes National Park in the United States of America

During the months of June, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Great Sand Dunes National Park have a dry season?
    Yes, the months of January, February, March, June, November and December are very dry.
  • Which is the warmest month in Great Sand Dunes National Park?
    July has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in Great Sand Dunes National Park?
    The coldest month is January with an average maximum temperature of 0°C.
  • Which is the wettest month in Great Sand Dunes National Park?
    July tops the wettest month list with 49 mm of rainfall.
  • Which is the driest month in Great Sand Dunes National Park?
    January is the driest month with 8 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Great Sand Dunes National Park (CO)

    Sat   Nov 23
    6°C | -7°C
    W 11 km/h
    almost clear and no rain

    almost clear and no rain

    Sun   Nov 24
    6°C | -5°C
    W 22 km/h
    broken clouds and no rain

    broken clouds and no rain

    Mon   Nov 25
    3°C | -7°C
    SW 14 km/h
    partly cloudy and no rain

    partly cloudy and no rain