UV Index in Brookhaven, United States

Last updated: June 2, 2025

Understanding the UV Index in Brookhaven, United States, is crucial for safeguarding your skin health and preventing sunburn. As a town characterized by a humid subtropical climate (Cfa), Brookhaven experiences fluctuating UV levels throughout the day, peaking at 11 during midday hours. Awareness of these UV levels helps residents and visitors alike take necessary precautions, ensuring enjoyable outdoor activities while minimizing the risk of skin damage. By staying informed about the UV Index, you can better protect yourself and your loved ones from the harmful effects of overexposure to sunlight.

Hourly UV Index in Brookhaven

Expect a sunny day with a fluctuating UV Index that peaks at 11 around midday. The morning starts off gentle, with values rising from 1 at 7:00 AM to 4 by 9:00 AM. As the sun climbs higher, the UV Index escalates sharply, reaching 9 by 11:00 AM and hitting its highest point of 11 at both 12:00 PM and 1:00 PM. After the sun’s zenith, the UV levels gradually decline, dropping to 10 at 2:00 PM and tapering off to 1 by 7:00 PM. Remember to protect your skin during those peak hours for a safe and enjoyable day outdoors!

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	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 Brookhaven

As the seasons change, so do the UV index levels, significantly impacting sun exposure risks. January starts with a UV Index of 5 (moderate), but by February it spikes to 8 (very high). The high-risk months for UV exposure are primarily March through August, where values reach 9 and maintain a dangerous 11 to 12 (extreme). During these peak months, the burn times drop to as little as 10 minutes, necessitating vigilance. Visitors and residents should take precautionary measures, including wearing sunscreen, protective clothing, and seeking shade during midday hours. As the season transitions into September and October, the UV levels taper off but remain at 10 and 8, making sun safety still essential. By November and December, the levels lessen to 6 and 4 respectively, allowing for more lenient sun exposure but still encouraging protective habits.

Monthly Maximum UV Index for Brookhaven, United States

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

The table above highlights how UV exposure in Brookhaven 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.

Brookhaven'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
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Brookhaven	5	8	9	11	11	12	12	11	10	8	6	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5