UV Index in Iona, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Iona, United States, where sunny days abound in the warm climate typical of the Aw zone. Awareness of UV levels not only helps prevent painful sunburns but also plays a vital role in maintaining long-term skin health. With the UV Index reaching a maximum of 12 during peak hours around midday, it’s essential to take precautions—protective clothing, sunscreen, and shade can make a world of difference. Stay informed and safeguard your skin from the potential risks posed by elevated UV exposure in this sun-drenched locale!

Hourly UV Index in Iona

As the sun rises, the UV Index starts off low at a manageable 1 from 07:00 to 08:00. However, things heat up quickly as we move into the late morning; by 10:00, it spikes to 5, reaching 8 at 11:00. The peak intensity occurs at 12:00, with an impressive index of 11, closely followed by 12 at 13:00 and 14:00—the sun is at its strongest! A gradual decrease follows, dropping to 10 by 15:00 and continuing down to 4 at 17:00. As the day winds down, the index relaxes further to 2 at 18:00 and returns to a safe 1 by 19:00. It's clear that today's UV risk peaks around midday, so remember to stay protected during those exposed 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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	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 Iona

During the year, UV Index levels experience significant fluctuations, with the highest risk months occurring from April to September, where the index peaks at 12, categorized as extreme. This period indicates a burn time of just 10 minutes, making sun protection critically important. February and March also present high risks, with indices of 9 and 10, respectively. Visitors and residents are advised to take precautions, such as wearing sunscreen, protective clothing, and sunglasses, especially during the peak hours of sunlight. As UV levels drop in the fall and winter months, from October to December, while still significant, the levels decrease to a maximum of 8 in November, allowing for somewhat safer outdoor activities. Always remain vigilant about UV exposure, regardless of the season.

Monthly Maximum UV Index for Iona, United States

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

The table above highlights how UV exposure in Iona 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.

Iona'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
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
Iona	6	9	10	12	12	12	12	12	11	10	8	6