UV Index in South Roxana, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of South Roxana, where the Cfa climate contributes to significant sun exposure throughout the year. By keeping an eye on UV levels, you can effectively prevent sunburn and maintain your overall skin health. During the sunniest hours, particularly around midday, UV Index levels can soar to as high as 10, indicating a very high risk of harm from unprotected sun exposure. With this knowledge, you can make informed decisions about sun safety, ensuring you enjoy the beautiful outdoors while protecting your skin from potential damage.

Hourly UV Index in South Roxana

The UV Index data unveils a dynamic progression of sun intensity throughout the day. Starting low at 1 at 07:00, the index gradually escalates, reaching maximum levels of 10 between 12:00 and 14:00. This peak signals a critical time for sun protection. As the afternoon wanes, the index tapers off to 8 at 15:00, and then descends further to 3 by 17:00, and 2 by 18:00. Ultimately, the day concludes softly with a return to 1 at 19:00. It's essential to stay vigilant during those peak hours to safeguard your skin while enjoying the sun!

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	8	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	8	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 South Roxana

Throughout the year, UV levels fluctuate, with significant increases during the spring and summer months. January and December have moderate UV Index levels of 3, allowing for 30 minutes of unprotected sun exposure, while February sees a slight increase to 5. As spring arrives, March reaches a high UV Index of 6 with a 25-minute burn time, transitioning to very high levels of 9 in April and peaking at 11 in June—the highest risk month with only 10 minutes of safe exposure. July and August maintain a very high UV Index of 10 and 9, respectively, before gradually declining to 6 in October and returning to moderate levels in November. For visitors and residents, it is crucial to take extra precautions from April through September, particularly in June, by wearing protective clothing, using sunscreen, and seeking shade during peak hours to minimize the risk of harmful UV exposure.

Monthly Maximum UV Index for South Roxana, United States

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

The table above highlights how UV exposure in South Roxana 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.

South Roxana'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
South Roxana	3	5	6	9	10	11	10	9	9	6	5	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