UV Index in Appleton, United States

Last updated: May 3, 2025

In Appleton, United States, understanding the UV Index is crucial for protecting your skin and overall health from harmful sun exposure. With a climate classified as Dfb, the city experiences a range of UV levels that can pose risks—especially during peak hours when UV Index readings soar as high as 9. Being aware of these levels not only helps in preventing sunburn but also plays a vital role in maintaining long-term skin health. As the sun shines brightly over Appleton, let this guide serve as a valuable resource to help you enjoy the outdoors safely while minimizing the risks associated with UV radiation.

Hourly UV Index in Appleton

The UV Index throughout the day shows a clear peak, starting from a gentle 1 at 07:00 AM, gradually rising to a moderate 2 by 08:00 AM. As the sun climbs higher, the index escalates sharply, reaching 6 at 10:00 AM and peaking at an impressive 9 from 12:00 PM to 1:00 PM. This period represents the height of midday sun exposure, highlighting the importance of protection. After this zenith, the index begins to decline, with a gradual drop to 6 by 3:00 PM, then 4 at 4:00 PM, ultimately settling back to 1 by the evening hours. Overall, it’s a day that encourages careful sun safety practices, especially during those peak hours.

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	7	high	25 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	8	very high	15 min
15:00	6	high	25 min
16:00	4	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Appleton

Throughout the year, the UV Index experiences notable fluctuations, indicating varying levels of sun exposure risk. From January to March, the UV Index hovers at moderate levels (3 to 5), with a burn time of approximately 30 minutes. The high-risk months emerge in April through August, peaking in June at a UV Index of 10, where the burn time shrinks to just 15 minutes. September sees a decrease to a high level of 7, while October through December gradually lower the UV Index back to moderate and low levels (3 to 2), allowing for longer burn times of 30 to 45 minutes. Visitors and residents should prioritize sun safety measures, especially from April to August, by wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize their risk of UV-related health issues.

Monthly Maximum UV Index for Appleton, United States

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

The table above highlights how UV exposure in Appleton 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.

Appleton'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
Appleton	3	4	5	7	9	10	9	9	7	5	3	2
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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5