UV Index in Walhalla, United States

Last updated: June 2, 2025

In Walhalla, United States, being aware of the UV Index is essential for protecting your skin and overall health. The UV Index indicates the strength of ultraviolet (UV) radiation on any given day, guiding you to make informed decisions about sun exposure and preventing sunburn. Understanding these UV levels is crucial, particularly with the region's Cfa climate, which can lead to heightened risks of UV exposure during peak hours—where the index peaks at an intense 11 around noon. As you enjoy the beauty of Walhalla, staying informed about the UV Index can help you maintain healthy skin and enjoy the outdoors safely.

Hourly UV Index in Walhalla

The UV Index is a crucial indicator of sun exposure, peaking dramatically throughout the day. Starting at a mild 1 by 07:00, it escalates swiftly, reaching 3 by 09:00. The intensity rises further, hitting 5 at 10:00 and surging to a striking 8 by 11:00. The sun's power truly culminates at 12:00, with an impressive 10 on the scale, and maintains a scorching 11 through 13:00 and 14:00. As the afternoon progresses, values begin to decline from 10 at 15:00 to 7 by 16:00, and gently taper off to 5 at 17:00, finally dwindling back to 3 by 18:00 and 1 come 19:00. Stay protected during peak hours to enjoy the sunshine safely!

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	7	high	25 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Walhalla

Throughout the year, UV Index levels exhibit notable seasonal changes. The months of April to July are particularly high-risk, with an extreme UV Index of 11, leading to a burn time of just 10 minutes. This period necessitates extra caution, with visitors and residents advised to wear protective clothing, hats, and sunscreen. As summer wanes, the UV Index gradually decreases but remains very high in August to October, with burn times ranging from 15 to 25 minutes. January and December present the lowest UV levels, categorized as moderate, where burn times extend to 30 minutes. It is essential for everyone to remain vigilant with sun protection, especially during the high-risk months.

Monthly Maximum UV Index for Walhalla, United States

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

The table above highlights how UV exposure in Walhalla 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.

Walhalla'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
Walhalla	4	7	8	11	11	11	11	10	9	8	6	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5