Aspen UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index9.1
- Avg Clouds61%
- Max Temp20.3 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Aspen, United States 
will reach a high of 9.1 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!
Last checked: 2025-09-10
Hourly Forecast Chart
Today's Safety Tips
The risk is very high. It's best to stay out of the sun between 10 a.m. and 4 p.m. If you must be outside, wear protective clothing and apply sunscreen often.
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
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.
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