UV Index in Cottleville, United States

Last updated: August 1, 2025

In Cottleville, United States, awareness of the UV Index is crucial for safeguarding your skin health and preventing painful sunburns. With a warm Cfa climate, residents and visitors often enjoy sunny days, but understanding UV levels helps mitigate the risks associated with increased sun exposure. During peak hours, the UV Index can soar up to 11, indicating a very high risk of harm from unprotected sun exposure. By staying informed about the UV Index, you can take proactive steps to protect yourself and your loved ones while enjoying the great outdoors in this vibrant community.

Hourly UV Index in Cottleville

The UV Index throughout the day follows a predictable rise and fall, peaking at 11 around 1:00 PM. Starting at a modest 1 at 7:00 AM, it gradually escalates, reaching 10 by 12:00 PM, signaling the need for sun protection. As the afternoon progresses, the index dips from 11 to 8 by 3:00 PM, then declines further to 2 by 6:00 PM, and finally settles back at 1 by 7:00 PM. This data underscores the importance of taking precautions during the hours of peak UV exposure, particularly between 11:00 AM and 3:00 PM, when levels are highest and pose the greatest risk to skin health.

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	7	high	25 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	9	very high	15 min
15:00	7	high	25 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Cottleville

Throughout the year, the UV Index exhibits noticeable seasonal changes, with the highest risk months being April to August, when the index reaches extreme levels of 10 and 11. During these peak months, particularly in June and July, the burn time shortens significantly to just 10 minutes, necessitating extra caution. In contrast, the winter months (January, February, and December) see moderate UV levels with burn times of 30 minutes. It is advisable for both visitors and residents to take protective measures, such as wearing sunscreen and protective clothing, especially from March to September, when the potential for skin damage from UV exposure becomes particularly high.

Monthly Maximum UV Index for Cottleville, United States

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

The table above highlights how UV exposure in Cottleville 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.

Cottleville'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
Cottleville	3	5	6	9	10	11	11	10	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