UV Index in Lost Hills, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Lost Hills, United States, where sunny, arid conditions present unique challenges for skin health. As you navigate daily outdoor activities, being aware of UV levels can help prevent sunburn and reduce the risk of long-term skin damage. In Lost Hills, with its BSk climate, the UV Index peaks at 11 around noon, signaling extremely high levels of harmful radiation. By staying informed about your local UV exposure risks, you can enjoy the beautiful Californian sunshine safely and wisely.

Hourly UV Index in Lost Hills

The UV Index today showcases a steady climb as the sun rises, starting with a mild 1 at 07:00. By 10:00, it ramps up to 7, signaling a more intense sun exposure. The peak arrives at 12:00 and 13:00, with a striking 11, indicating a high risk of harm from unprotected sun exposure. As the afternoon wanes, the index gradually declines to 8 at 15:00 and further down to 2 by 18:00, creating a safer environment for evening activities. Overall, the day's UV pattern emphasizes the importance of sun protection during the midday hours, while reassuring a more manageable level of UV exposure later in the day.

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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 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.

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.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Lost Hills	4	5	8	9	10	11	12	11	9	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5