UV Index in Newton, United States

Last updated: May 3, 2025

Understanding the UV Index in Newton, United States, is essential for safeguarding your skin and overall health. With the city experiencing a Cfa climate, residents need to be particularly aware of the potential for harmful UV exposure, especially during the peak hours of 10 AM to 2 PM when indices reach as high as 11. By monitoring UV levels, you can take proactive steps to prevent sunburn and long-term skin damage, ensuring that your outdoor activities remain safe and enjoyable. Stay informed and protect yourself against the sun’s powerful rays in Newton!

Hourly UV Index in Newton

The UV Index throughout the day paints a vivid picture of the sun's intensity. At 7:00 AM, the day begins with a gentle UVI of 1, making it safe for early risers. By 8:00 AM, it ticks up to 2, still in the low range. As the sun climbs higher, the index jumps to 4 at 9:00 AM, indicating a moderate level of UV radiation. The peak arrives at 12:00 PM and 1:00 PM, where the index soars to an alarming 11, highlighting the need for sun protection during these hours. Fortunately, as the afternoon progresses, the levels start to decline, dropping to 10 by 2:00 PM and then to 7 and 5 through 3:00 PM and 4:00 PM. By 5:00 PM, it settles back to 2, and by 6:00 PM, a return to the safer 1 concludes a day dominated by high UV intensity. Remember, at high levels, sun safety is vital!

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	7	high	25 min
11:00	10	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	7	high	25 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Newton

Throughout the year, UV levels fluctuate, with high-risk months primarily falling between February and August. Notably, April to July feature an extreme UV Index of 11 to 12, necessitating precautions to limit sun exposure to just 10 minutes during peak hours. February and March present significant risks as well, with very high UV levels of 8 and 9, leading to burn times of only 15 minutes. To safeguard your skin, residents and visitors are advised to minimize exposure during peak sun hours, wear protective clothing, and use broad-spectrum sunscreen. As the year progresses, November and December offer lower UV levels, classified as high and moderate, respectively, allowing for longer safe exposure times of 25 to 30 minutes.

Monthly Maximum UV Index for Newton, United States

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

The table above highlights how UV exposure in Newton 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.

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