UV Index in Westport, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Westport, United States, particularly given its coastal climate with varying sun exposure. Awareness of UV levels plays a vital role in sunburn prevention and long-term skin health, helping you enjoy the outdoors safely. With peak UV readings reaching 9 around midday, it’s important to know when to seek shade or apply sunscreen. By staying informed about the UV Index, you can effectively protect yourself from the sun's harmful effects while enjoying Westport’s beautiful outdoor activities.

Hourly UV Index in Westport

As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it climbs to a 2, indicating a low risk of harm from unprotected sun exposure. However, from 09:00 onwards, the intensity builds, peaking at 9 between 13:00 and 14:00—a time when precautions are essential to protect skin from damage. The afternoon hours see a slight decrease, dropping to 8 at 15:00 and further declining to 4 by 17:00. As the sun sets, the UV Index falls back down to 1 by 19:00, marking a return to safer levels. Stay vigilant during those midday hours to enjoy the sunshine while keeping your skin healthy!

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	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	9	very high	15 min
14:00	9	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 Westport

Throughout the year, UV exposure varies significantly, peaking during the summer months. The high-risk months for UV radiation are from May to August, where the UV Index reaches very high levels (9) for three consecutive months. In these months, the recommended burn time is as low as 15 minutes, indicating a critical need for sun protection. As spring approaches, the UV Index increases from a low of 2 in January to a high of 6 in April, where precautions should start to be taken seriously. By September, the UV Index begins to decline, dropping to 7, but remains in the high category. Visitors and residents should therefore remain vigilant and adopt sun safety measures during peak months by wearing sunscreen, protective clothing, and seeking shade whenever possible, especially when outdoor activities are planned.

Monthly Maximum UV Index for Westport, United States

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

The table above highlights how UV exposure in Westport 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.

Westport'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
Westport	2	3	5	6	9	9	9	8	7	5	3	1
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