UV Index in White Rock, United States

Last updated: July 2, 2025

In White Rock, United States, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels is vital for preventing sunburn, reducing the risk of skin cancer, and promoting long-term skin wellness. With its Cfb climate, White Rock experiences significant UV exposure, especially during peak hours—from 10 AM to 2 PM—when indices can soar to levels of 12 and beyond. Staying informed about these fluctuations ensures that you can enjoy the beautiful outdoors while minimizing your risk of sun damage.

Hourly UV Index in White Rock

Throughout the day, the UV Index experiences a dynamic shift, peaking at an impressive 13 between 1 PM and 2 PM, indicating a high risk of harm from unprotected sun exposure. The morning starts gently, with a UV Index of 1 at 7 AM, gradually rising to 4 by 9 AM. As the sun inches higher, the intensity increases sharply, reaching 10 by 11 AM and soaring to 12 by noon. Post-peak, the index begins to decline, dropping to 10 at 3 PM, before settling back to a mild 2 by 6 PM. This clear progression emphasizes the importance of sun protection during the midday hours when the UV Index is at its highest. Enjoy the sunshine, but remember to stay safe! ☀️

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	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	7	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 White Rock

The UV Index experiences significant seasonal variation, with the highest values occurring from March through September. During this period, particularly in April, May, June, and July, the UV Index reaches extreme levels of 11 to 13, resulting in very short burn times of just 10 minutes. February and October see high to very high levels of UV exposure, necessitating caution with burn times of 25 and 15 minutes, respectively. The months of November, December, and January exhibit moderate UV levels, allowing for longer burn times of 30 minutes. Visitors and residents should prioritize sun safety during high-risk months (March to September) by seeking shade, wearing protective clothing, and applying sunscreen frequently to mitigate skin damage.

Monthly Maximum UV Index for White Rock, United States

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

The table above highlights how UV exposure in White 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.

White 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
White Rock	5	7	9	11	12	13	13	12	11	8	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5