UV Index in Karnes City, United States

Last updated: July 2, 2025

In Karnes City, United States, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels is essential, as exposure can lead to sunburn and long-term skin damage. With its Cfa climate, Karnes City experiences considerable UV exposure, especially during the midday hours when the index peaks at 12 around 1 PM and 2 PM. This makes it vital for residents and visitors alike to implement sun safety measures, ensuring they enjoy the beautiful Texas sun without compromising their skin's health.

Hourly UV Index in Karnes City

The UV Index today presents a striking rise in intensity throughout the morning, beginning at a low of 1 at 07:00. As the day progresses, especially from 10:00 onwards, the index takes a dramatic leap, peaking at a scorching 12 between 13:00 and 14:00. This intense exposure underscores a need for protective measures during those hours. As the sun begins to set, the index gradually declines, returning to 1 by 19:00, indicating a safer end to the day. Overall, today’s UV trend highlights the importance of sun protection during peak hours, particularly between 11:00 and 15:00.

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
09:002low45 min
10:005moderate30 min
11:007high25 min
12:0010very high15 min
13:0012extreme10 min
14:0012extreme10 min
15:0010very high15 min
16:007high25 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Karnes City

Throughout the year, UV levels exhibit significant seasonal changes. January sees a moderate UV Index of 5, while February and March jump to 8 and 9, respectively, indicating very high exposure risks with short burn times of just 15 minutes. The peak months for UV exposure are from April to August, where the Index reaches an extreme level of 11 to 12, necessitating caution with a burn time of only 10 minutes. As the year progresses, UV levels decrease, but October remains notably high at 9, followed by November with a high category of 7. For visitors and residents alike, it is crucial to take protective measures during the high-risk months of April through September and remain vigilant, using sunscreen, wearing protective clothing, and seeking shade to minimize the risk of skin damage.

Monthly Maximum UV Index for Karnes City, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Karnes City. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec589111212121211975
Data source: Statistical UV Index data for Karnes City, 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 Karnes City UV Index with Other United States Cities

The table above highlights how UV exposure in Karnes City 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.
Karnes City'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
Houston UVI589111112121110975
Karnes City589111112121211975