UV Index in Brewster, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Brewster, United States, as it serves as a vital tool in protecting against harmful ultraviolet rays. High UV levels, especially during the peak hours of 11:00 AM to 3:00 PM when Brewster experiences indices soaring to 10, significantly increase the risk of sunburn and long-term skin damage. Given Brewster's Dfa climate, characterized by its seasonal variations, it's essential to be aware of UV exposure to enjoy the outdoors safely while prioritizing your skin health. Stay informed and make wise decisions to enjoy the beautiful sunlit days in Brewster with confidence!

Hourly UV Index in Brewster

The UV Index for the day showcases a dramatic increase in solar intensity, peaking at a maximum of 10 between 1 PM and 2 PM. Starting from a modest 1 at 7 AM, the index rises steadily, reaching 3 by 9 AM and hitting 4 at 10 AM. The sun’s scorching rays truly emerge at 11 AM, where the index soars to 7, escalating to a sizzling 8 at noon. As we move into the afternoon, caution is crucial, as the index maintains its peak strength of 10 from 1 PM to 2 PM before gradually declining to 6 by 4 PM. The evening brings some relief, with the index dropping to 2 by 6 PM and finally resting at a cool 1 by 7 PM. Stay protected 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	1	low	45 min
09:00	3	moderate	30 min
10:00	4	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	6	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 Brewster

Throughout the year, UV levels display significant variation, peaking during the summer months. The high-risk months for UV exposure are April through September, with UV Index values reaching their peak at 11 in June, indicating an extreme risk of harm from unprotected sun exposure. Visitors and residents are advised to take precautions during these months, including seeking shade, wearing protective clothing, and applying sunscreen regularly. During lower UV months, specifically January, February, November, and December, while risks are moderate, it's still wise to remain vigilant as UV rays can still cause harm. Being informed about UV Index levels can help ensure a safe and enjoyable outdoor experience year-round.

Monthly Maximum UV Index for Brewster, United States

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

The table above highlights how UV exposure in Brewster 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.

Brewster'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
Brewster	3	5	6	9	10	11	10	10	8	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