UV Index in O'Brien, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of O'Brien, United States, where the climate features moderate temperatures and increased exposure to sunlight. Being aware of UV levels helps prevent sunburn and promotes long-term skin health, essential considerations given that the UV Index here can peak at a high of 11 during midday hours. With typical risks associated with high exposure, especially from 10 AM to 4 PM, staying informed about the UV Index empowers you to enjoy the sun safely while protecting your skin from harmful effects.

Hourly UV Index in O'Brien

As the day unfolds, the UV Index rises steadily, peaking at 11 around 1 PM—a clear signal for sun protection. Starting from a low of just 1 at 7 AM, it escalates through the morning, hitting 8 by 11 AM. At 12 PM, the intensity reaches a significant 10, before slightly diminishing to 9 at 3 PM and tapering off rapidly in the afternoon. As the sun begins to set, the UV levels drop to 4 by 5 PM, finally settling back to 1 by 7 PM. With this clear UV trajectory, staying cautious during the peak hours, especially from 11 AM to 2 PM, is essential for skin safety. Don your sunscreen and enjoy the sun responsibly!

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	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	9	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 O'Brien

Throughout the year, UV index levels demonstrate significant seasonal changes, with March to September being the highest risk months for UV exposure. In particular, May and June reach an extreme UV index of 11, resulting in much shorter burn times of only 10 minutes. As summer progresses, the UV index remains quite high, reaching 10 in July and August and 8 in September. For those in the area, it is crucial to take precautions during these months—seek shade, wear protective clothing, and apply broad-spectrum sunscreen. Conversely, the UV index is at its lowest in December, indicating a low risk for sunburn, with a more extended burn time of 45 minutes. Consequently, visitors and residents should remain vigilant and adjust their sun safety practices according to the forecasted UV index throughout the year.

Monthly Maximum UV Index for O'Brien, United States

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

The table above highlights how UV exposure in O'Brien 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.

O'Brien'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
O'Brien	3	4	7	8	11	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