UV Index in Brewster, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Brewster, United States, as it directly impacts sun safety and skin health. With summer temperatures soaring and UV levels peaking, being aware of daily UV forecasts helps prevent sunburn and long-term skin damage. In Brewster's Dsb climate, where sunny days are common, the UV Index can reach as high as 9 during peak hours. This makes it essential for the community to recognize the risks associated with increased UV exposure and to take appropriate precautions to enjoy the outdoors safely.

Hourly UV Index in Brewster

The UV Index for the day begins low at 1 by 7:00 AM, gradually rising as the sun climbs higher in the sky. By 9:00 AM, it reaches 4, marking a noticeable increase. The intensity peaks at 12:00 PM with a scorching 9, maintaining this high level until 14:00 PM. As the afternoon progresses, the index dips to 7 at 15:00 PM, and then continues its descent to 4 by 17:00 PM. The sun’s waning effects are apparent by the evening, with the UV Index dropping to 1 by 19:00 PM. This day highlights the importance of sun protection during peak hours when the index hits its maximum.

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	9	very high	15 min
15:00	7	high	25 min
16:00	5	moderate	30 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, the UV Index exhibits significant seasonal changes, with high-risk months typically occurring from May to August, when the index peaks at 9, indicating very high exposure levels. During these months, a burn time of only 15 minutes is sufficient to cause skin damage, prompting visitors and residents to take precautions such as wearing sunscreen, hats, and protective clothing. Conversely, the winter months of January and December see low UV levels (index 2) with a burn time of 45 minutes, making outdoor activities less risky. February through April transition to moderate to high levels; thus, it's essential to remain vigilant and adjust sun protection habits accordingly. Always check the UV Index before heading outdoors, particularly in the summer months, to ensure safe and enjoyable outdoor experiences.

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
Brewster	2	4	5	6	8	9	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