UV Index in Hawthorne, United States

Last updated: May 3, 2025

Understanding the UV Index in Hawthorne, United States, is crucial for protecting your skin from harmful ultraviolet rays. With typical UV levels peaking significantly during the midday hours, awareness can help you prevent sunburn and promote long-term skin health. Hawthorne's BSk climate presents unique challenges, as the area can experience intense sun exposure, particularly in the summer months. By staying informed about the UV Index, residents can make smarter choices about sun safety and enjoy the outdoors with reduced risk.

Hourly UV Index in Hawthorne

The UV Index throughout the day presents a fascinating shift in sun intensity. At 07:00, the index starts low at 1, indicating a safe environment for outdoor activities. As the morning progresses, it steadily climbs, reaching 4 by 09:00 and 7 by 10:00. The sunshine peaks around 12:00, hitting a robust 11, and even escalates to 12 by 13:00, marking the apex of midday sun exposure. However, the index begins to gracefully descend after this high, dropping to 8 by 15:00, and tapering off to 3 at 17:00. As the evening sets in, the index returns to the safety of 2 at 18:00 and further recedes to a gentle 1 by 19:00. This data underscores the importance of sun safety during peak hours, particularly between 11:00 and 14:00, when protective measures are most crucial.

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	10	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Hawthorne

As the seasons change, so do the UV Index levels, indicating varying risks of sun exposure. The high-risk months are from March to August, with April, May, June, and July classified as having an extreme UV Index of 12. During these months, individuals can burn in as little as 10 minutes of unprotected sun exposure. It’s crucial for both visitors and residents to take precautions, such as wearing sunscreen, protective clothing, and seeking shade, especially during peak hours. Conversely, from November to February, the UV Index drops to moderate levels, allowing for safer outdoor activities with less risk of sunburn, although it's still advisable to remain cautious.

Monthly Maximum UV Index for Hawthorne, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hawthorne. 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 Hawthorne, 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 Hawthorne UV Index with Other United States Cities

The table above highlights how UV exposure in Hawthorne 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.

Hawthorne'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
Hawthorne	4	6	8	10	12	12	12	11	10	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5