UV Index in Perryville, United States

Last updated: May 3, 2025

Awareness of the UV Index is crucial for residents of Perryville, United States, where the humid subtropical climate can elevate the risk of harmful ultraviolet radiation. Understanding UV levels not only helps in preventing sunburn but also plays a key role in maintaining long-term skin health. With peak UV Index readings reaching as high as 10 during the summer months, it's essential for locals to stay informed about daily UV exposure. Proper precautions can make all the difference in protecting yourself from the sun's harmful effects while enjoying the vibrant outdoor activities that Perryville has to offer.

Hourly UV Index in Perryville

The UV Index (UVI) follows a distinct pattern throughout the day, starting from a low of 1 at 07:00 and 08:00. As the sun rises higher, the intensity increases, reaching 2 by 09:00. The real surge occurs between 10:00 and 13:00, where it climbs sharply to its peak of 10 at 13:00 and 14:00, indicating extremely high levels of UV radiation. As the afternoon wanes, the index gradually decreases, dropping to 4 by 17:00, then settling back to a comfortable 1 by 19:00. For those enjoying outdoor activities, it’s crucial to take precautions between 11:00 and 15:00 when the UVI is at its highest.

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	2	low	45 min
10:00	4	moderate	30 min
11:00	7	high	25 min
12:00	9	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	9	very high	15 min
16:00	7	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 Perryville

Throughout the year, the UV Index experiences significant seasonal changes, with January and December presenting the lowest levels (UV Index 3) and the summer months of June and July reaching peak levels (UV Index 11), categorized as extreme. April and May also have very high readings (UV Index 9-10), indicating a gradual increase in risk as spring progresses into summer. March, August, and September maintain a high risk for UV exposure (UV Index 7-9). Visitors and residents are advised to take precautions from March through October, especially during the extreme months of June and July, by seeking shade, wearing protective clothing, and applying sunscreen regularly, as burn times decrease significantly to as little as 10 minutes during peak UV periods.

Monthly Maximum UV Index for Perryville, United States

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

The table above highlights how UV exposure in Perryville 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.

Perryville'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
Perryville	3	5	7	9	10	11	11	10	9	7	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