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Aspen UV Index Today

Day Summary

The UV index in Aspen, United States Flag of United States will reach a high of 7.9 today. This means a high level of sun exposure. See our tips below to stay safe!

Last checked: 2025-09-16

Hourly Forecast Chart

Today's Safety Tips

Be careful! The sun's rays are strong. Try to stay in the shade between 10 a.m. and 4 p.m. Wear a hat, sunglasses, and reapply SPF 30+ sunscreen every 2 hours.

Aspen's UV Index

Aspen has a UV index that varies throughout the year, often reaching moderate to high levels in summer months, typically ranging from 4 to 8. In winter, the UV index tends to be lower, usually between 1 and 3.

Weather Seasons

UV index

Aspen's weather shows clear seasonal patterns: cold, snowy winters ideal for skiing and mild, pleasant summers. Spring and autumn bring transitional weather with some rain and cooler temperatures, with spring sometimes experiencing late snowfalls.

Aspen's Climate

Compared to the broader Rocky Mountain region, Aspen tends to have more snowfall and cooler winter temperatures due to its elevation. It is generally colder and snowier than nearby lower-elevation areas but has similar seasonal changes to other mountain towns in Colorado and neighboring states like Utah and Wyoming.

Hourly UV Index Trend

See the UV index hour by hour for Aspen. When the level is high, it's smart to find some shade.

Disclaimer

* The information on this page about the UV index in Aspen is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.