UV Index in Corvallis, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for the residents of Corvallis, Oregon, where the climate can lead to varied UV exposure. With midday UV levels reaching as high as 10, awareness of these fluctuations is vital to prevent sunburn and protect skin health. In this unique Csb climate zone, even on overcast days, harmful ultraviolet rays can cause damage. Keeping an eye on the UV Index helps you make informed decisions about outdoor activities, ensuring you stay safe while enjoying the beautiful landscapes Corvallis has to offer.

Hourly UV Index in Corvallis

As the sun rises, the UV Index begins to climb, starting at a mild 1 at 7:00 AM. By 10:00 AM, it reaches a moderate 5, signaling the need for sun protection. The real peak occurs at 1:00 PM, with the index soaring to an intense 10—a critical point where sun safety is paramount. As the afternoon progresses, the UV levels gradually decline, dipping to 8 at 3:00 PM and settling back down to 2 by 6:00 PM. For anyone planning their day, it's essential to stay vigilant during the midday hours when the UV radiation is at its highest, ensuring skin is well-protected against potential damage.

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	9	very high	15 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Corvallis

The UV Index varies significantly throughout the year, demonstrating a clear seasonal pattern. High-risk months for UV exposure occur from March to September, where the index peaks at 10 in May, June, and July, categorized as very high with a burn time of only 15 minutes. April begins the high-risk period, followed by August and September, both registering at 9 and 8 respectively. In contrast, January, February, October, November, and December present lower risk levels, with the index falling between 2 and 4. To ensure health and safety, visitors and residents are strongly advised to take precautions, such as using sunscreen and protective clothing, particularly during the peak months when UV exposure poses significant risks.

Monthly Maximum UV Index for Corvallis, United States

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

The table above highlights how UV exposure in Corvallis 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.

Corvallis'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
Corvallis	2	4	6	7	10	10	10	9	8	5	3	2
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