UV Index in Lost Hills, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Lost Hills, United States, where the combination of a semi-arid climate and high sun exposure can significantly impact skin health. As UV levels fluctuate throughout the day, recognizing the importance of these readings can help in preventing sunburn and reducing the long-term risks associated with skin damage. With peak UV levels soaring to a high of 12 around midday, being aware of these figures not only promotes safer outdoor activities but also emphasizes the importance of sunscreen use and protective clothing to safeguard your skin against harmful rays.

Hourly UV Index in Lost Hills

Throughout the day, the UV Index displayed a dynamic pattern, peaking at an intense 12 around 1 PM. Starting off gently at 1 by 7 AM, it climbed steadily, reaching 9 by 11 AM, a clear sign to take precautions. As the sun approached its zenith, the index swelled to its maximum at 12 PM, emphasizing the importance of sun safety. Following the midday peak, the index gradually decreased, dropping to 9 by 3 PM, then tapering off further to 2 by 6 PM and 1 by 7 PM. This data underscores the significance of shielding oneself from the sun's harmful rays during the day, especially when the UV Index 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
08:002low45 min
09:004moderate30 min
10:007high25 min
11:009very high15 min
12:0011extreme10 min
13:0012extreme10 min
14:0011extreme10 min
15:009very high15 min
16:006high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Lost Hills

Throughout the year, UV exposure varies significantly, with the highest risk months occurring from March to August. During this period, the UV Index peaks at 12 in July, categorized as extreme, requiring only 10 minutes for skin to burn. April and May also present very high UV levels with indices of 9 and 10, respectively, with a burn time of just 15 minutes. In contrast, the months of January, November, and December have moderate UV levels, with a maximum index of 5, allowing for a safer 30-minute burn time. As such, visitors and residents are advised to take extra precautions during the high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the sun's intensity is at its peak.

Monthly Maximum UV Index for Lost Hills, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Lost Hills. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec4589101112119753
Data source: Statistical UV Index data for Lost Hills, 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 Lost Hills UV Index with Other United States Cities

The table above highlights how UV exposure in Lost Hills 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.
Lost Hills'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
Lost Hills4589101112119753
Houston UVI589111112121110975