UV Index in Palmyra, United States

Last updated: August 1, 2025

Understanding the UV Index in Palmyra, United States, is crucial for protecting your skin and overall health from harmful sun exposure. With the area's climate classified as Cfa, residents and visitors experience a range of UV levels that can lead to sunburn and long-term skin damage if not monitored. The midday hours see UV Index values reaching a peak of 10, highlighting the importance of knowing when to seek shade or apply sunscreen. By staying informed about UV levels, you can enjoy the beautiful Palmyra sunshine while prioritizing your skin health and well-being.

Hourly UV Index in Palmyra

The UV index begins its ascent at 07:00, starting at a gentle 1, then climbs gradually through the morning. By 10:00, it reaches a moderate 5, but from 11:00 onwards, the sun's intensity becomes pronounced, peaking at an impressive 10 between 13:00 and 14:00. After this zenith, the index dips to 8 at 15:00 and continues its decline, settling back to 2 by 18:00. As the day winds down into the evening, the UV index drops to a low 1 by 19:00, signaling a return to safer sun exposure levels. Enjoy the sunshine while staying protected during the high points!

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	9	very high	15 min
13:00	10	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 Palmyra

Throughout the year, ultraviolet (UV) radiation levels fluctuate significantly, influencing exposure risks for both residents and visitors. January to February begins with a moderate UV Index of 3, increasing to 6 in February, indicating higher caution is needed as the potential for skin damage grows. By March, the Index reaches 7, and from April through September, it peaks at a very high level of 9 to 10, particularly in the summer months of May, June, July, and August. These months represent the highest-risk periods for UV exposure, with a critical burn time of just 15 minutes. As the year progresses, October sees a decrease to a high level of 7, followed by a return to moderate levels in November (5) and December (3). It is crucial for everyone to take precautions during high-risk months, such as wearing sunscreen, protective clothing, and seeking shade to mitigate the risk of UV-related health issues.

Monthly Maximum UV Index for Palmyra, United States

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

The table above highlights how UV exposure in Palmyra 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.

Palmyra'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
Palmyra	3	6	7	9	10	10	10	10	8	7	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