UV Index in San Manuel, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of San Manuel, United States, as it provides vital information about the sun's intensity and the potential risks of overexposure. The UV Index helps you gauge the necessary precautions to take, particularly in preventing sunburn and protecting your skin health. With San Manuel's semi-arid BSk climate, the region experiences significant UV exposure, especially during the peak hours of sunlight when levels can soar to a striking 13 around noon. Staying informed about UV levels can make all the difference in enjoying the outdoors safely while safeguarding your long-term skin health.

Hourly UV Index in San Manuel

The UV Index today rises steadily, starting from a mild 2 at 07:00 and peaking at an intense 13 by 12:00. As the sun reaches its zenith, the UV levels hit their highest mark of 11 at 11:00 and a staggering 13 at noon, highlighting the importance of sun safety during these hours. Following this peak, the index begins to taper off, dipping to 10 by 14:00 and gradually declining to 1 by 19:00. This hourly fluctuation underscores the need for protective measures, particularly between 10:00 and 14:00, when the sun is at its most powerful. Enjoy the sunshine, but remember to stay safe!

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	2	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	8	very high	15 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 San Manuel

Throughout the year, seasonal UV changes show a significant increase in ultraviolet radiation from late winter through summer, peaking during the months of March to October. The high-risk months are primarily from March to September, where the UV Index reaches very high to extreme levels, with burn times dropping to as low as 10 minutes. As such, it is crucial for visitors and residents alike to take preventative measures during these times, including wearing broad-spectrum sunscreen, protective clothing, and seeking shade, especially during peak hours from 10 AM to 4 PM. In contrast, January, February, October, and November present a lower risk, but vigilance is still advised as exposure can still lead to skin damage.

Monthly Maximum UV Index for San Manuel, United States

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

The table above highlights how UV exposure in San Manuel 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.

San Manuel'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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
San Manuel	5	7	10	11	12	13	12	11	11	8	6	5