Normal weather for Great Sand Dunes National Park in September
It's warm in September in Great Sand Dunes National Park with an average temperature of 24°C. Temperatures this month range from a low of 20°C to a high of 27°C. At night, you can expect temperatures between 3°C and 9°C.
In September, there is an average of 27 mm of precipitation, spread over 6 days. Of the total precipitation, about 1,6 cm falls as snow in September. The wind speed is around 4 Bft, mostly coming from the Southwest.
Great Sand Dunes National Park in September |
New York | ||
|---|---|---|---|
 Average Temperature |
24°C | 27°C | |
 High Temp |
27°C | 31°C | |
| Low Temp |
20°C | 21°C | |
 Total Precipitation |
27 mm | 57 mm | |
| Rainy Days |
6 days | 9 days | |
 Total Snowfall |
1,6 cm | 0 cm | |
| Snowy Days |
1 day | 0 days | |
Start of September
The month of September starts in Great Sand Dunes National Park with warm temps, averaging around 26°C during the day and nights around 8°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.
Mid September
By mid-September, daytime temps drop to around 24°C, with nights around 6°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
Since it cools down at night, it’s a good idea to wear layers. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
End of September
By the end of September, the average daytime temperature in Great Sand Dunes National Park is around 22°C, while nighttime temps are about 5°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Great Sand Dunes National Park?
Looking for great weather? September is a good time to be in Great Sand Dunes National Park. The temperatures are nice, and there’s not too much rain.
Temperature records for Great Sand Dunes National Park in September
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Daily Temperature in September in Great Sand Dunes National Park
This chart shows the average daily high and low temperatures in September for Great Sand Dunes National Park, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Great Sand Dunes National Park
The chart below shows the average daily precipitation in September for Great Sand Dunes National Park, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 6 days of precipitation in Great Sand Dunes National Park.
Daily Snowfall in September in Great Sand Dunes National Park
This chart shows the average daily snowfall in September in Great Sand Dunes National Park, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in September.
Daily UV Index in September in Great Sand Dunes National Park
This chart shows the average daily UV index in September in Great Sand Dunes National Park, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Great Sand Dunes National Park Over the Years
This chart shows the average temperature in September in Great Sand Dunes National Park, measured in degrees Celsius, over the past few years.
Total Precipitation in September in Great Sand Dunes National Park Over the Years
This chart shows the average precipitation in September in Great Sand Dunes National Park, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in September in Great Sand Dunes National Park per year
This chart shows the average snowfall in September in Great Sand Dunes National Park, measured in centimeters, over the past few years.
Daily Climate in September for Great Sand Dunes National Park
Click on any day in September to get detailed info about the usual weather on that day in Great Sand Dunes National Park. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Great Sand Dunes National Park
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Average Weather in Great Sand Dunes National Park by Month
Click on a month below to see detailed weather info for Great Sand Dunes National Park. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Great Sand Dunes National Park for all months at once
