UV Index in Gloucester, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Gloucester, United States, where sunny days and a temperate climate can lead to increased sun exposure. Being informed about the daily UV levels helps individuals protect themselves against sunburn and long-term skin damage, ensuring healthier skin in the long run. With UV Index values peaking at 11 during midday hours, Gloucester experiences significant risks, making it essential for locals to take precautions, especially during the height of summer. Stay protected and enjoy the great outdoors wisely by keeping a close eye on the UV Index!

Hourly UV Index in Gloucester

As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it gently climbs to 2, but watch out as it rampages up to 4 by 09:00. The real intensity kicks in at 10:00, when the index hits a 6, and it reaches its peak of 10 at 12:00. The sun is relentless, pushing the index to 11 from 13:00 to 14:00, making this the most hazardous time of the day. Fortunately, the UV levels start to decline after 15:00, dropping back to 9, then dwindling to 4 by 17:00, and finally retreating to a safer 1 by 19:00. Ensure you take proper sun protection measures during the peak hours to safeguard your skin!

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	10	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 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 Gloucester

The UV Index experiences significant seasonal variations, with the most dangerous months for sun exposure falling between March and August. During this period, UV levels peak at 11 in May, June, and July, indicating an extreme risk of harm from unprotected sun exposure, where burn time can be as short as 10 minutes. Residents and visitors should take extra precautions during these months, such as wearing protective clothing, seeking shade, and applying broad-spectrum sunscreen regularly. As the year progresses into the fall and winter months, the UV Index decreases, reaching moderate levels in January and December, with a burn time of 30 minutes. However, even in these months, some sun protection is advisable.

Monthly Maximum UV Index for Gloucester, United States

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

The table above highlights how UV exposure in Gloucester 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.

Gloucester'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
Gloucester	4	6	8	10	11	11	11	10	9	8	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5