UV Index in Oshkosh, United States

Last updated: June 2, 2025

In Oshkosh, United States, understanding the UV Index is crucial for maintaining skin health and preventing sunburns. With its BSk climate, Oshkosh experiences significant UV exposure, especially during the peak hours of 10 AM to 2 PM, where the UV Index can soar to 11—more than enough to cause harm without proper protection. By staying informed about local UV levels, residents can make smarter choices about sun safety, ensuring they enjoy the beautiful Wisconsin sun while minimizing their risk of skin damage.

Hourly UV Index in Oshkosh

As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it ramps up to a moderate 3, but the real surge happens from 09:00 onward, peaking at an intense 11 from 12:00 to 13:00. This peak indicates a high risk of harm from unprotected sun exposure, so be sure to protect your skin during these hours. As the afternoon approaches, the index gradually declines, dipping to 8 at 15:00 and a safe 2 by 18:00, finally resting at 1 by 19:00. Keep in mind to stay safe and enjoy the sunlight responsibly!

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	3	moderate	30 min
09:00	5	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 Oshkosh

Throughout the year, UV exposure varies significantly, with high-risk months typically occurring from March to September. During these months, particularly in April through July, the UV index reaches notably high levels, peaking at 11, which indicates extreme exposure risks and a quick burn time of just 10 minutes. As the seasons shift, visitors and residents should be particularly vigilant from May to August, when protective measures such as sunscreen, hats, and seeking shade are essential to prevent skin damage. In contrast, January, November, and December present a moderate UV index of 3-4, allowing for longer burn times of 30 minutes, though sunscreen should still be applied. Staying informed about these UV changes can help ensure safe outdoor activities year-round.

Monthly Maximum UV Index for Oshkosh, United States

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

The table above highlights how UV exposure in Oshkosh 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.

Oshkosh'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
Oshkosh	3	5	7	9	10	11	11	10	9	6	4	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