UV Index in Ouray, United States

Last updated: June 2, 2025

In Ouray, Colorado, keeping an eye on the UV Index is essential to protect yourself and your loved ones from harmful ultraviolet radiation. Understanding UV levels helps in preventing sunburn and promoting long-term skin health, particularly in a region where intense sunlight is common, especially during peak hours. With Ouray's Dfb climate, which features warm summers and significant exposure to high UV levels—peaking at an alarming UV Index of 14 around midday—being aware of the daily UV forecast is critical for safe outdoor activities and enjoying all that this beautiful area has to offer. Remember, just a few minutes of unprotected sun exposure can lead to harmful effects; staying informed about the UV Index can make all the difference!

Hourly UV Index in Ouray

As the day unfolds, the UV Index rises dramatically, peaking at 14 around 1:00 PM. Starting from a mild 1 at 7:00 AM, it gradually climbs, reaching 11 at 11:00 AM and hitting its zenith with a concerning 13 by 12:00 PM. This intense UV exposure persists until 2:00 PM, when it starts to taper off, declining to 8 by 4:00 PM and eventually returning to safer levels of 2 by 6:00 PM. It's crucial to stay protected during those peak hours, especially between 10:00 AM and 2:00 PM, when the sun's rays are at their strongest.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:005moderate30 min
10:008very high15 min
11:0011extreme10 min
12:0013extreme10 min
13:0014extreme10 min
14:0013extreme10 min
15:0011extreme10 min
16:008very high15 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Ouray

Throughout the year, the UV Index experiences notable fluctuations, peaking during the summer months. January and December register a moderate UV Index of 4, allowing for a burn time of up to 30 minutes. In February, the risk increases as the index rises to 7, categorized as high, shortening burn time to 25 minutes. The months of March through September represent the highest risk, with UV levels reaching as high as 14 in June, classified as extreme, leading to a minimal burn time of just 10 minutes. April and May witness similarly extreme conditions. As the season transitions to October, the UV Index drops to 8, falling back into the very high category, while November experiences a decline to a high index of 6. It is crucial for both visitors and residents to take proactive measures to protect their skin, especially during high-risk months from March to September, by using sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours.

Monthly Maximum UV Index for Ouray, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Ouray. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec4710131314131211864
Data source: Statistical UV Index data for Ouray, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Ouray UV Index with Other United States Cities

The table above highlights how UV exposure in Ouray compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Ouray's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Houston UVI589111112121110975
Ouray4710131314131211864