UV Index in Ellisville, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Ellisville, United States, where the subtropical climate can lead to significant sun exposure. The UV levels fluctuate throughout the day, peaking at an alarming 11 from noon to 1 PM, highlighting the importance of awareness in preventing sunburn and promoting overall skin health. With active outdoor lifestyles common in this vibrant community, recognizing UV risks can make a vital difference. Stay informed to enjoy the sun safely and protect your skin from potential damage!

Hourly UV Index in Ellisville

At dawn, the UV Index starts at a gentle 1 by 07:00, indicating minimal exposure risk. As the sun climbs higher, the intensity rises sharply, reaching a maximum of 11 between 12:00 and 13:00—a time when protective measures are crucial. The peak UV Index highlights the importance of sun safety, as conditions can be particularly harsh. The afternoon sees a gradual decline, dipping to 8 by 15:00 and further decreasing to 3 by 17:00. As evening approaches, the index wanes to a mellow 1 by 19:00, suggesting a return to safer exposure levels. Keep in mind that tracking the UV Index throughout the day can help protect your skin from harmful 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	9	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 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 Ellisville

Throughout the year, UV exposure levels fluctuate significantly, with March through August marking the highest risk months due to extreme UV Index values of 11. During these months, the burn time is reduced to just 10 minutes, necessitating vigilant sun protection measures. February also presents a notable risk with a high UV Index of 7 and a burn time of 25 minutes. As the season transitions to fall, UV levels begin to decline, with September and October still posing very high risks (UV Index 10 and 8, respectively). In contrast, January, November, and December see moderate to high UV levels, allowing for longer safe exposure times. Visitors and residents are advised to take precautionary steps during peak UV months, including wearing protective clothing, applying sunscreen, and seeking shade, especially during midday hours, to mitigate skin damage.

Monthly Maximum UV Index for Ellisville, United States

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

The table above highlights how UV exposure in Ellisville 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.

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