UV Index in Altamont, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Altamont, United States, as it serves as a vital tool for protecting against harmful ultraviolet radiation. With higher UV levels typically peaking during midday—from 10 AM to 2 PM—awareness of these fluctuations is essential for preventing sunburn and safeguarding skin health. Altamont's humid continental climate (Dfa) brings varying sun exposure risks, particularly in summer, making it even more important to monitor UV conditions. By staying informed about the UV Index, you can take proactive steps to enjoy the sun safely and reduce the risk of long-term skin damage.

Hourly UV Index in Altamont

As the sun rises, the UV Index begins to climb, starting at a mild 1 at 7:00 AM. By 10:00 AM, it reaches a moderate 5, signaling the need for sun protection. The real peak occurs at 1:00 PM, with the index soaring to an intense 10—a critical point where sun safety is paramount. As the afternoon progresses, the UV levels gradually decline, dipping to 8 at 3:00 PM and settling back down to 2 by 6:00 PM. For anyone planning their day, it's essential to stay vigilant during the midday hours when the UV radiation is at its highest, ensuring skin is well-protected against potential damage.

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.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:003moderate30 min
10:005moderate30 min
11:007high25 min
12:009very high15 min
13:0010very high15 min
14:009very high15 min
15:008very high15 min
16:006high25 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Altamont

Throughout the year, UV exposure varies significantly, peaking during late spring and summer months. High-risk months for UV exposure are April through September, where the UV Index frequently reaches levels classified as very high; particularly notable are May, June, and July, when it consistently hits a maximum of 10. Visitors and residents are advised to take precautions during these months, with burn times dramatically reduced to as little as 15 minutes. In contrast, January, February, and November present moderate UV levels, and December has a low index, making sun safety measures less critical during these months. To protect against skin damage, it is essential to wear sunscreen, seek shade, and wear protective clothing, especially between peak months of April and September.

Monthly Maximum UV Index for Altamont, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Altamont. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Statistical UV Index data for Altamont, 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 Altamont UV Index with Other United States Cities

The table above highlights how UV exposure in Altamont 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.
Altamont's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Altamont356910101098642
Los Angeles UVI46891011111010754
Houston UVI589111112121110975