UV Index in Salem, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Salem, United States, as it provides vital information about the sun’s intensity and potential risks to skin health. With the UV levels peaking at 11 during midday, awareness can help prevent sunburn and long-term skin damage. Salem enjoys a humid continental climate (Dfa), which can lead to higher than expected UV exposure, particularly in summer months. Staying informed about the UV Index not only protects your skin but also promotes overall well-being—so check the daily UV levels before heading outdoors!

Hourly UV Index in Salem

The UV Index reveals a dynamic daily pattern, starting from a low of 1 at 7:00 AM, and gradually climbing to a peak of 11 between 1:00 PM and 2:00 PM. As the sun reaches its zenith, 12:00 PM also sees a high of 10, signaling an urgent need for sun protection. After this peak, a downward trend persists, with readings dropping to 7 by 4:00 PM, and further declining to 1 by 7:00 PM. This data underscores the importance of remaining vigilant about UV exposure during the midday hours when the risk is greatest, highlighting the necessity of precautions like sunscreen and protective clothing.

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	8	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	7	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 Salem

Throughout the year, UV Index levels fluctuate significantly, indicating varying risks of skin damage from sun exposure. The high-risk months are typically from March to August, where UV Index levels reach very high to extreme categories, particularly peaking at 11-12. March and April see a dramatic increase with values of 9 and 10 respectively, while May through July presents the greatest danger with an extreme level of 12, suggesting burn times as short as 10 minutes. Visitors and residents are advised to take precautions during these months by wearing sunscreen, protective clothing, and seeking shade, especially during midday hours. Conversely, November and December offer lower UV exposure, making those months relatively safer for outdoor activities.

Monthly Maximum UV Index for Salem, United States

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

The table above highlights how UV exposure in Salem 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.

Salem'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
Salem	4	6	9	10	11	12	12	11	9	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5