UV Index in Hailey, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Hailey, United States, as it directly impacts skin health and sunburn prevention. With the region's Dsb climate, the sun can be quite intense, especially during peak hours when UV levels can reach a maximum of 11 between noon and 2 PM. Knowing when it’s safer to be outdoors helps safeguard against harmful UV radiation, which can lead to long-term skin damage. Stay informed and protect yourself while enjoying Hailey's beautiful sunny days!

Hourly UV Index in Hailey

As the sun rises, the UV Index starts off low at 1 by 07:00, making it a safe time for outdoor activities. By 09:00, it rises to 3, signaling increasing sunlight. The real surge hits at 10:00 with a 5, reaching 8 by 11:00—a clear indication that sun protection is becoming necessary. The peak intensity arrives at 12:00, reaching a scorching 10, and continues to soar to an intense 11 from 13:00 to 14:00. As the afternoon rolls in, the index begins to dip slightly to 10 by 15:00, and further declines to 8 by 16:00. Finally, as the day unwinds, the UV levels decrease to 5 at 17:00, then settle at 3 and 2 by 18:00 and 19:00, respectively. Stay sun-smart during those peak hours to protect your skin!

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	10	very high	15 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in Hailey

Throughout the year, UV levels fluctuate significantly, with March through September marked as high-risk months. During this period, the UV Index peaks, reaching an extreme level of 11 or higher in May, June, and July, where even brief exposure can lead to burns in just 10 minutes. The earlier spring months of March and April present a very high risk as well, requiring caution with a burn time of only 15 minutes. Conversely, the winter months of January, February, November, and December feature a moderate UV Index (3-5) with safer burn times of 30 minutes or more. To ensure safety, visitors and residents are advised to wear sunscreen, protective clothing, and seek shade during peak UV hours, especially from late spring to late summer.

Monthly Maximum UV Index for Hailey, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hailey. 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 Hailey, 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 Hailey UV Index with Other United States Cities

The table above highlights how UV exposure in Hailey 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.

Hailey'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
Hailey	3	5	8	9	11	12	11	10	9	6	4	3
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