UV Index in Lexington, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Lexington, United States, where sunny days can lead to elevated UV exposure risks. Monitoring UV levels helps in preventing sunburn and maintaining healthy skin, reducing long-term risks of skin damage and cancer. With a Cfa climate that typically boasts warm summers and ample sunshine, it's essential to be aware of the daily UV fluctuations—especially as peak readings soar to 11 between noon and early afternoon. Stay informed and protect your skin by checking the UV Index regularly.

Hourly UV Index in Lexington

As the sun rises, the UV Index starts low at 1 at 07:00 and 08:00, perfect for a leisurely morning. By 09:00, it climbs to 3, signaling that it's time to enjoy some shade. The intensity peaks sharply at 12:00 with a maximum index of 10, indicating a high risk of harm from unprotected sun exposure. Continuing at 13:00 and 14:00, the index holds steady at 11, urging caution with the midday sun blazing down. As the afternoon progresses, the UV levels begin to wane, dropping to 7 by 16:00, and further decreasing to 2 by 18:00. Finally, the day winds down with a gentle 1 at 19:00, marking a safe return to outdoor activities as the sun sets. Be sure to 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	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	10	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Lexington

The UV Index experiences significant seasonal changes, peaking during the summer months. From January to April, the index rises from a moderate level of 4 to a very high 10, indicating increased risk for skin damage. The high-risk months are March through August, where the UV Index reaches extraordinary heights of 10 and 11, with burn times drastically reducing to as little as 10 minutes. It is crucial for visitors and residents to take protective measures, such as wearing sunscreen, sunglasses, and protective clothing, especially during these peak months when exposure can be extremely harmful. As the year progresses into fall, the UV Index decreases but remains significant through October, making sun safety a year-round consideration.

Monthly Maximum UV Index for Lexington, United States

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

The table above highlights how UV exposure in Lexington 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.

Lexington'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
Lexington	4	6	8	10	10	11	11	10	9	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5