UV Index in Black Rock, United States

Last updated: June 2, 2025

Being aware of the UV Index in Black Rock, United States, is essential for maintaining optimal skin health, especially given the region's BSk climate, characterized by its dry and sunny conditions. Understanding the daily UV levels helps residents and visitors alike to prevent sunburn and reduce the risk of long-term skin damage. With peak readings reaching as high as 13 between 1 PM and 2 PM, knowing when to seek shade or apply sunscreen can make a significant difference in your outdoor experiences, ensuring you enjoy the sun safely while minimizing exposure risks.

Hourly UV Index in Black Rock

The UV Index data reveals a significant spike in sun intensity as the day progresses. Starting at 07:00 with a mild 1, it climbs steadily, reaching 4 by 09:00. The sun really begins to unleash its strength by 10:00, peaking at a striking 13 at 13:00—a reminder to seek shade and protect your skin. As the afternoon winds down, the index gradually decreases, settling back to 1 by 19:00. This hourly snapshot underscores the importance of sun safety during the midday hours, when the UV exposure is at its highest. Stay safe and enjoy the sunshine!

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	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Black Rock

Throughout the year, UV exposure levels vary significantly, with the highest risk typically occurring from March to September. During these months, the UV Index peaks at 13 in June and July, indicating an extreme exposure category with a burn time of just 10 minutes. In contrast, the UV Index is moderate in January and December, allowing for safer exposure with burn times of 30 minutes. Visitors and residents should take precautions during high-risk months by applying sunscreen, wearing protective clothing, and limiting sun exposure between 10 AM and 4 PM when UV rays are strongest. It's crucial to remain vigilant in March through September, when UV levels can lead to rapid skin damage.

Monthly Maximum UV Index for Black Rock, United States

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

The table above highlights how UV exposure in Black Rock 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.

Black Rock'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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
Black Rock	5	7	9	11	12	13	13	12	11	8	6	5