UV Index in Willow Creek, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Willow Creek, where sunny days can quickly lead to harmful UV radiation exposure. With peak levels soaring to 10 during midday, it's essential to be aware of the risks associated with sunburn and long-term skin damage. By monitoring UV levels throughout the day, you can take proactive steps to protect your skin and maintain its health under the region's Csb climate, which brings mild summers and significant UV exposure. Stay informed and enjoy the sun safely!

Hourly UV Index in Willow Creek

The UV Index on this particular day paints a striking picture of sun intensity as it unfolds throughout the hours. Starting with a gentle maximum of 1 at 07:00, the sun gradually rises, peaking to a significant 10 by midday at 12:00, signaling the height of solar radiation. This intensity remains unwavering at 10 from 13:00 to 14:00, providing a bold reminder to stay sun-safe. As the day progresses, the UV Index begins to retreat, dipping to 8 at 15:00, and continuing its descent to a milder 1 by 19:00. Whether lounging outdoors or engaging in activities, it's essential to be mindful of these fluctuations and adequately protect your skin during those peak hours!

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	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 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 Willow Creek

Throughout the year, the UV Index shows significant seasonal variations, with the highest levels occurring from March to September. Specifically, April to June are considered high-risk months where the UV Index peaks at 11, indicating an extreme risk of harm from unprotected sun exposure, with a burn time as short as 10 minutes. Visitors and residents should take precautions during these months, such as seeking shade, wearing protective clothing, and applying sunscreen regularly. From October to February, the UV Index decreases, with the lowest levels in December (UV Index 2), where exposure risk is considerably lower. Nevertheless, even during moderate months like January and February, it is still essential to stay vigilant about sun safety to minimize potential skin damage.

Monthly Maximum UV Index for Willow Creek, United States

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

The table above highlights how UV exposure in Willow Creek 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.

Willow Creek'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
Willow Creek	3	4	7	8	11	11	10	10	9	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