UV Index in Mammoth, United States

Last updated: July 2, 2025

Understanding the UV Index in Mammoth, United States, is crucial for protecting your skin from harmful ultraviolet radiation. With peak UV levels reaching 12 during midday hours, awareness of these levels can help prevent sunburn and long-term skin damage. Mammoth's high-altitude, semi-arid climate not only intensifies UV exposure but also means that habits for sun safety are essential year-round. Stay informed and shield yourself against the sun's rays – your skin will thank you!

Hourly UV Index in Mammoth

The UV Index throughout the day exhibits a striking pattern, peaking at an intense 12 between 12:00 PM and 1:00 PM, marking it as a crucial time for sun protection. As the sun rises, the index climbs steadily from a mild 1 at 7:00 AM to a moderate 3 by 8:00 AM. It reaches 6 by 9:00 AM and escalates further to 8 at 10:00 AM. The midday sun asserts its strength with a 11 at 11:00 AM before hitting the maximum at 12. Following this peak, the UV Index begins its gradual decline, dropping to 10 at 2:00 PM, then falling to 7 by 3:00 PM. The later hours see a further reduction, with values slipping to 5 by 4:00 PM and tapering off to 1 again by 6:00 PM. Stay sun-safe during those peak hours!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	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 Mammoth

Throughout the year, the UV Index varies significantly, posing different levels of risk to visitors and residents. From January to April, UV exposure starts low but escalates sharply, peaking in May and June at an extreme UV Index of 12, resulting in a burn time of just 10 minutes. The high-risk months are notably March through August, where caution is essential due to very high to extreme UV levels. September maintains high UV exposure, before tapering down in October. As we approach the winter months, the UV Index reduces, with levels returning to moderate by December. To ensure safety, it's crucial for everyone to apply sunscreen regularly, seek shade during peak hours, and wear protective clothing, especially during the highest risk periods.

Monthly Maximum UV Index for Mammoth, United States

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

The table above highlights how UV exposure in Mammoth 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.

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