UV Index in Windsor, United States

Last updated: June 2, 2025

In the vibrant city of Windsor, United States, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels not only helps you avoid painful sunburns but also plays a vital role in decreasing long-term skin damage. With Windsor's Dfb climate, residents can experience a range of UV exposure risks, particularly during peak hours when the UV Index soars to 10 around noon. By staying informed about these levels, you can enjoy the beautiful outdoors while protecting your skin from harmful rays.

Hourly UV Index in Windsor

As the sun rises, the UV Index starts its ascent, with a gentle 1 at 07:00. By 08:00, it begins to climb, reaching 2, signaling a reminder to take care. The real intensity kicks in at 10:00, where the index peaks at 6, escalating to a scorching 9 by noon. The hottest moment arrives at 13:00, showcasing a dramatic 10—a level that demands serious sun protection. Although the UV level begins to drop after this peak, it remains notable; at 14:00, it settles at 9, then declines gently, hitting 3 by 17:00. As daylight fades towards the evening, it tapers off to 2 at 18:00 and finally returns to a safe 1 by 19:00. It's a vivid reminder of the sun's power throughout the day!

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	8	very high	15 min
12:00	9	very high	15 min
13:00	10	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 Windsor

Throughout the year, the UV Index exhibits significant seasonal variation, with the highest levels occurring in late spring and summer months. Notably, April to August are identified as high-risk months, where the UV Index peaks at 10 in June and remains at 9 in both July and August, indicating very high exposure and requiring a burn time of only 15 minutes. In contrast, the winter months of January, February, and December show lower UV levels, with a moderate index of 3 and 2 respectively, allowing for longer exposure times without severe risk of burns. Visitors and residents are advised to adopt protective measures during high-risk months, such as applying sunscreen, wearing protective clothing, and seeking shade, to minimize the risk of overexposure.

Monthly Maximum UV Index for Windsor, United States

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

The table above highlights how UV exposure in Windsor 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.

Windsor'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
Windsor	3	4	6	8	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