UV Index in McKinleyville, United States

Last updated: July 2, 2025

In McKinleyville, United States, awareness of the UV Index is crucial for safeguarding your skin against harmful ultraviolet radiation. Understanding UV levels can help prevent sunburn, reduce the risk of skin cancer, and promote overall skin health. With a Csb climate characterized by cool, coastal conditions, UV exposure can still pose risks, especially during peak hours when the index reaches 10 from noon to 2 PM. Stay informed and protect yourself while enjoying the beauty of your local environment!

Hourly UV Index in McKinleyville

The UV index begins its ascent at 07:00, starting at a gentle 1, then climbs gradually through the morning. By 10:00, it reaches a moderate 5, but from 11:00 onwards, the sun's intensity becomes pronounced, peaking at an impressive 10 between 13:00 and 14:00. After this zenith, the index dips to 8 at 15:00 and continues its decline, settling back to 2 by 18:00. As the day winds down into the evening, the UV index drops to a low 1 by 19:00, signaling a return to safer sun exposure levels. Enjoy the sunshine while staying protected during the high points!

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	5	moderate	30 min
11:00	7	high	25 min
12:00	9	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 McKinleyville

Throughout the year, the UV Index experiences significant fluctuations, impacting the level of sun exposure risk for individuals. High-risk months include March through September, where the UV Index reaches high to extreme levels, with the highest recorded in June at 11. During these peak months, the recommended burn time decreases to as little as 10 to 15 minutes, indicating a need for heightened precautions. Visitors and residents are strongly advised to protect their skin by using sunscreen, wearing protective clothing, and seeking shade during the peak sunlight hours, especially from April to September, to minimize the risk of harmful UV exposure. Conversely, in the winter months (December to February), the UV levels are more moderate, allowing for safer outdoor activities with longer burn times of 30 to 45 minutes.

Monthly Maximum UV Index for McKinleyville, United States

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

The table above highlights how UV exposure in McKinleyville 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.

McKinleyville'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
McKinleyville	3	4	7	8	10	11	10	10	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