UV Index in Westfield, United States

Last updated: July 2, 2025

Staying informed about the UV Index is crucial for residents of Westfield, United States, where sunny days can lead to significant UV exposure risks. Understanding UV levels not only helps in preventing painful sunburns but also plays a vital role in maintaining long-term skin health. With Westfield's Cfa climate featuring warm summers, UV levels can soar, peaking at a high of 10 between noon and early afternoon. Emphasizing UV awareness can empower the community to enjoy the outdoors safely while protecting their skin from harmful rays.

Hourly UV Index in Westfield

The UV Index reveals a dynamic pattern throughout the day, beginning with a minimal UVI of 1 at 07:00, and gradually rising as the sun ascends. By 10:00, it reaches 4, signaling a shift towards higher exposure, and by 12:00, it peaks at an impressive 8. Among the highest readings, 13:00 and 14:00 hit a scorching 10, emphasizing the need for sun protection during these hours. As the afternoon wanes, the index starts to decline, dropping to 7 by 16:00, and further declining to 5 at 17:00. As evening approaches, the UVI diminishes to 3 at 18:00, and concludes with a gentle 2 at 19:00. This pattern underscores the importance of vigilance against UV exposure as midday approaches, encouraging outdoor enthusiasts to take precautions when the sun is at its strongest.

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	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	8	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	9	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in Westfield

As the seasons change, so do the UV Index levels, significantly impacting sun exposure risk. High-risk months occur from April through September, with the peak UV Index reaching 11 in June, categorized as extreme, and a burn time of just 10 minutes. In contrast, January and December present the lowest risk, with UV Index levels of 3 and 2, respectively. Visitors and residents should be particularly cautious during the very high to extreme UV periods; wearing sunscreen, seeking shade, and wearing protective clothing are essential measures to minimize the risk of sunburn and long-term skin damage. Regularly checking the daily UV Index will help ensure safe outdoor activities throughout the year.

Monthly Maximum UV Index for Westfield, United States

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

The table above highlights how UV exposure in Westfield 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.

Westfield'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
Westfield	3	5	6	9	10	11	10	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