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UV Index in Aspen

UV index


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Today's UV index in Aspen, United States United States will be up to 11.4, indicating a extreme level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.


Today's tips

UV index at 11.4 in Aspen means extreme risk; limit outdoor time from 10 a.m. to 4 p.m., use shade, protective clothing, SPF 30+ sunscreen, and sunglasses; watch for bright surfaces like water and snow increasing UV exposure.

Aspen's UV Index

Aspen, Colorado has a high UV index throughout the year, averaging around 9-10 during peak summer months and 4-5 during winter. This is due to its high elevation and proximity to the equator.

Weather Seasons

UV index

Aspen experiences a humid continental climate, with four distinct seasons. Winters are cold and snowy, while springs are mild and wet. Summers are warm and dry, and autumns are cool and crisp.

Aspen's Climate

Compared to other cities in the Rocky Mountains, Aspen's climate is relatively dry and cold. It is similar to other mountainous regions in the US, such as Vail and Breckenridge. Neighboring countries, like Canada, experience a more extreme climate with colder winters and shorter summers.


* This page's content about the UV index in Aspen (United States) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.