UV Index in Gunnison, United States

Last updated: July 2, 2025

Understanding the UV Index in Gunnison, United States, is essential for safeguarding your skin amid the region's unique climate. With its elevation and a climate characterized by cool summers, Gunnison can expose residents and visitors to fluctuating UV levels that reach heights of 12 and 13 around midday. Awareness of UV levels is crucial for preventing sunburn and promoting long-term skin health, especially since missing a simple sunscreen application can lead to lasting damage. By staying informed about the daily UV Index, you can protect yourself and maximize your enjoyment of the stunning Colorado outdoors, all while being mindful of the potential risks associated with UV exposure.

Hourly UV Index in Gunnison

As the sun rises, the UV Index begins its climb, starting at a modest 1 at 07:00. By 09:00, it reaches 4, signaling the need for sun protection. The intensity peaks at 13 around 13:00, perfect for seeking shade or slathering on sunscreen. Temperatures are sizzling as it slightly dips to 12 by 14:00, then gradually decreases throughout the afternoon. As the day winds down, the UV Index falls to 2 at 18:00 and returns to 1 by 19:00, signaling safer conditions as the sun sets. Keep your skin protected during those peak hours when the UV rays are most intense!

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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Gunnison

The UV Index experiences significant seasonal variation, peaking during the summer months. From March through August, the UV Index reaches extreme levels, particularly between April and June, when it remains at 13 and exposes individuals to risk of burning in as little as 10 minutes. February marks the onset of high UV exposure, with an index of 7, while January and December feature moderate levels (UV Index 4). September sees a slight decrease to a very high exposure, with an index of 10. The high-risk months are from March to August, where precautions are essential. Visitors and residents should prioritize sun safety by using sunscreen, wearing protective clothing, and seeking shade, especially during peak hours, to minimize the risk of skin damage.

Monthly Maximum UV Index for Gunnison, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Gunnison. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Gunnison, 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 Gunnison UV Index with Other United States Cities

The table above highlights how UV exposure in Gunnison 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.

Gunnison's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
Gunnison	4	7	11	13	13	13	13	12	10	7	6	4