UV Index in Portville, United States

Last updated: May 3, 2025

In Portville, United States, staying informed about the UV Index is essential for protecting your skin and maintaining overall health. Understanding UV levels helps you prevent sunburn and minimize long-term skin damage, especially during the sunniest hours of the day. With a Climate Zone Dfb, Portville experiences varied seasons, but summer days can still present significant UV exposure risks, peaking at a UV Index of 10 around noon and early afternoon. By monitoring UV levels, residents can enjoy the outdoors safely while prioritizing their skin's well-being.

Hourly UV Index in Portville

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 Portville

Throughout the year, UV exposure varies significantly, peaking during late spring and summer months. High-risk months for UV exposure are April through September, where the UV Index frequently reaches levels classified as very high; particularly notable are May, June, and July, when it consistently hits a maximum of 10. Visitors and residents are advised to take precautions during these months, with burn times dramatically reduced to as little as 15 minutes. In contrast, January, February, and November present moderate UV levels, and December has a low index, making sun safety measures less critical during these months. To protect against skin damage, it is essential to wear sunscreen, seek shade, and wear protective clothing, especially between peak months of April and September.

Monthly Maximum UV Index for Portville, United States

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

The table above highlights how UV exposure in Portville 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.

Portville'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
Portville	3	5	6	9	10	10	10	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