UV Index in South Boston, United States

Last updated: June 2, 2025

Understanding the UV Index in South Boston, United States is crucial for protecting your skin and promoting overall health. With the potential for high UV levels, especially during peak hours in the summer months, awareness can help prevent sunburn and reduce the risk of skin cancer. South Boston's Cfa climate brings warm summers and ample sunshine, making it essential to track daily UV exposure. As the UV Index can spike to levels as high as 11 around midday, it's vital to take proactive measures to safeguard your skin when enjoying the outdoors. Stay informed and stay protected!

Hourly UV Index in South Boston

The UV Index for today shows a dramatic rise as the sun ascends into the sky. Starting at a mild 1 by 07:00, the index gradually builds, reaching 3 by 09:00 and peaking at an intense 11 at 13:00—a level where sun protection is crucial. From this pinnacle, the values start to decline, tapering off to 10 at 14:00 and then gradually decreasing through the afternoon and evening, with values of 6 at 16:00 and sliding down to 1 by 19:00. Plan your outdoor activities accordingly, and remember to protect your skin 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	2	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	9	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 South Boston

Throughout the year, UV radiation levels exhibit distinct seasonal variations, with high-risk months typically occurring from April to October. During this period, the UV Index rises sharply, peaking at an extreme level of 11 in May and June, indicating a burn time of just 10 minutes. For visitors and residents, it's crucial to be vigilant during these months, particularly from March to October, when the UV Index consistently ranges from high to extreme. To protect yourself, consider wearing sunscreen, protective clothing, and seeking shade, especially between 10 AM and 4 PM, when UV exposure is greatest. As the year transitions into the cooler months of November and December, the risk decreases to a moderate category, allowing for more extended outdoor activities with less risk of sunburn.

Monthly Maximum UV Index for South Boston, United States

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

The table above highlights how UV exposure in South Boston 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.

South Boston'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
South Boston	3	6	7	9	11	11	10	10	9	8	5	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