UV Index in Walker, United States

Last updated: July 2, 2025

In Walker, United States, staying informed about the UV Index is crucial for safeguarding your skin and overall health. The UV Index provides a clear indication of the sun's intensity, enabling residents to take proactive measures against sunburn and long-term skin damage. With Walker's Cfa climate—characterized by warm summers and moderate seasonal variation—it's essential to recognize that UV levels can spike, especially midday when they reach a maximum of 11. By understanding these levels, you can enjoy the outdoors while effectively protecting yourself from harmful effects of UV exposure.

Hourly UV Index in Walker

The UV Index throughout the day presents a clear peak in intensity around midday. Starting with a low of 1 at 07:00, it gradually increases, reaching 2 by 08:00. The sun’s rays grow more potent as the day progresses, hitting 4 at 09:00, followed by a notable rise to 6 by 10:00. The intensity continues to escalate, peaking at an impressive 11 between 12:00 and 14:00, indicating a high risk for harm from unprotected sun exposure. As the afternoon wanes, the UV Index decreases, falling to 9 at 15:00, and further dropping to 3 by 17:00, before tapering off to 1 by 19:00. It's essential to stay protected during those peak hours to enjoy the sun 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	2	low	45 min
09:00	4	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Walker

Throughout the year, UV index levels fluctuate significantly, impacting sun exposure risks. High-risk months typically span from February through September, where the UV index reaches very high to extreme levels. Notably, April to September feature the most critical exposure categories (extreme), with a burn time as short as 10 minutes during these months. Residents and visitors should take precautionary measures during these peak times, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during midday hours. In contrast, winter months like January and December present lower risks, categorized as moderate, with longer burn times of 30 minutes. Awareness of the UV index and proper sun safety practices is crucial for maintaining skin health throughout the seasons.

Monthly Maximum UV Index for Walker, United States

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

The table above highlights how UV exposure in Walker 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.

Walker'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
Walker	5	8	9	11	11	12	11	11	11	9	6	5
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5