UV Index in Llano, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of Llano, Texas, where sunny skies are common in the Cfa climate zone. As the sun's rays can be particularly intense from late morning through early afternoon, keeping an eye on UV levels helps in preventing sunburns and safeguarding skin health. When the UV Index peaks at 12 around midday, it's a reminder to take necessary precautions, as prolonged exposure can lead to serious skin issues. Stay informed and protect yourself while enjoying the vibrant beauty of Llano!

Hourly UV Index in Llano

As the sun rises, the UV Index starts low, reaching a modest 1 at 7:00 AM. By 9:00 AM, it climbs to 3, signaling that sun protection is becoming increasingly important. As the day progresses, the intensity peaks at 12 around 1:00 PM, making it critical to seek shade or wear protective clothing. The afternoon sees a slight decrease, stabilizing between 10 and 8 until 4:00 PM, before tapering off to 3 by 6:00 PM and returning to a safe 1 as the sun sets at 7:00 PM. This data highlights the importance of remaining sun-smart, especially during the midday hours when UV exposure is at its highest.

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
08:001low45 min
09:003moderate30 min
10:005moderate30 min
11:008very high15 min
12:0010very high15 min
13:0012extreme10 min
14:0011extreme10 min
15:0010very high15 min
16:008very high15 min
17:005moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Llano

Throughout the year, the UV Index experiences significant fluctuations, peaking during the summer months. High-risk months for sun exposure are from March to August, where values reach extreme levels of 11 to 12, necessitating a burn time as low as 10 minutes. Visitors and residents should exercise caution, especially in these months, ensuring they apply sunscreen frequently, seek shade, and wear protective clothing. As the seasons transition, September and October still show elevated levels at 10 and 8, respectively, marking them as considerable months for UV exposure. It’s advised to remain vigilant even in the cooler months; while January and December pose a lower risk with UV Index levels of 5 and 4, adopting sun safety practices year-round is crucial for skin protection.

Monthly Maximum UV Index for Llano, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Llano. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121110864
Data source: Statistical UV Index data for Llano, 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 Llano UV Index with Other United States Cities

The table above highlights how UV exposure in Llano 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.
Llano'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
Llano579111112121110864
Houston UVI589111112121110975