UV Index in Helena-West Helena, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Helena-West Helena, where the sun's rays can be particularly intense, especially during peak hours. As a city nestled in a Cfa climate zone, the UV exposure can vary greatly, making it essential for inhabitants to stay informed about daily UV levels to prevent sunburn and protect their skin health. With UV Index readings peaking at a striking 12 around midday, being aware of these levels can help you take the necessary precautions to enjoy the outdoors safely, ensuring that your time in the sun is both enjoyable and responsible.

Hourly UV Index in Helena-West Helena

The UV Index reaches its peak intensity at 1 PM, soaring to an alarming 12. Early morning starts off gently, with indices of 1 at 7 AM and gradually rising to 2 by 8 AM. By 9 AM, the index jumps to 4, hinting at more intense sun exposure to come. As the day progresses, it escalates rapidly, hitting 7 by 10 AM and 9 at 11 AM. The sun is at its zenith at noon, with a robust 11. After this peak, a slight decline begins, but caution is still advised as the values remain significant, dropping to 8 at 3 PM and tapering off to 3 by 5 PM. The UV risk diminishes further into the evening, returning to a calmer 1 by 7 PM. Stay protected during those midday hours to enjoy the sun safely!

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
09:004moderate30 min
10:007high25 min
11:009very high15 min
12:0011extreme10 min
13:0012extreme10 min
14:0011extreme10 min
15:008very high15 min
16:006high25 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Helena-West Helena

Throughout the year, the UV Index displays significant seasonal fluctuations, notably peaking during the summer months. High-risk months where UV exposure is most critical include May, June, and July, with extreme UV Index levels of 11 and 12, resulting in a burn time as short as 10 minutes. Other notably high months are March and April, categorized as very high, with burn times dropping to 15 minutes. It is essential for visitors and residents to take preventative measures during these months: seek shade, wear protective clothing, and apply broad-spectrum sunscreen to minimize the risk of skin damage. As the year progresses toward the cooler months of October through December, UV exposure decreases, but caution is still advised during high risk months like November. Staying aware of these changes can ensure a safer and more enjoyable outdoor experience year-round.

Monthly Maximum UV Index for Helena-West Helena, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Helena-West Helena. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec46810121111109764
Data source: Statistical UV Index data for Helena-West Helena, 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 Helena-West Helena UV Index with Other United States Cities

The table above highlights how UV exposure in Helena-West Helena 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.
Helena-West Helena'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
Los Angeles UVI46891011111010754
Helena-West Helena46810111211109764
Houston UVI589111112121110975