UV Index in Clayton, United States

Last updated: July 2, 2025

Being aware of the UV Index in Clayton, United States is crucial for protecting your skin and overall health. Understanding UV levels helps individuals gauge their risk of sunburn and long-term skin damage, enabling them to take necessary precautions throughout the day. With Clayton's semi-arid climate (BSk), the UV exposure can reach significant levels, especially during peak hours—where values soar up to 12 between noon and 1 PM. Stay informed and safeguard your skin by checking the UV Index regularly; your future self will thank you!

Hourly UV Index in Clayton

At sunrise, the UV Index begins its steady climb, starting at a safe 1 at 07:00. As the morning progresses, it escalates to 2 by 08:00 and reaches a pleasant 4 by 09:00. However, the real intensity hits between 10:00 and 13:00, with the UV Index peaking at a scorching 12 at 12:00, indicating a high risk of harm from unprotected sun exposure. As the afternoon unfolds, levels gradually descend, hitting 9 at 15:00 before tapering off to 4 by 17:00. By the evening hours, the index returns to a mild 1 by 19:00, reminding us of the importance of sunscreen amidst the sun's powerful midday rays.

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	12	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Clayton

Throughout the year, UV Index levels exhibit significant seasonal variations, indicating the need for awareness and protection against sun exposure. High-risk months primarily span from March to August, where the UV Index reaches extreme levels of 11 to 13, resulting in burn times as short as 10 minutes. In these months, it is crucial for both visitors and residents to take extra precautions, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours. Conversely, the UV Index drops to moderate levels (4 to 6) in January, November, and December, allowing for more relaxed sun exposure. However, even in these months, it's advisable to remain vigilant against UV radiation. Understanding these seasonal changes can help everyone enjoy the outdoors safely while minimizing the risk of skin damage.

Monthly Maximum UV Index for Clayton, United States

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

The table above highlights how UV exposure in Clayton 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.

Clayton'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
Clayton	4	6	8	11	11	13	12	11	10	8	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5