UV Index in Lanai City, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Lanai City, United States, especially given its tropical climate and abundant sun exposure. The UV Index provides valuable information about the strength of ultraviolet radiation on a given day, which plays a key role in sunburn prevention and overall skin health. With typical peak UV levels soaring to 13 during midday, awareness of these fluctuations can help you take necessary precautions to protect your skin from damage. Embracing UV awareness not only promotes a healthier lifestyle but also enhances your enjoyment of Lanai City's beautiful outdoor environment.

Hourly UV Index in Lanai City

As the sun rises, the UV Index begins to climb steadily. Starting at a mild 1 at 7:00 AM, the intensity increases to a moderate 3 by 8:00 AM. However, it's not until 10:00 AM that the UV Index hits 8, signaling the need for sun protection. The peak occurs at 12:00 PM with a soaring 13, making it crucial to take precautions if you're outdoors. As the afternoon progresses, the index gradually declines, dropping to 10 at 2:00 PM and sliding to 7 by 3:00 PM. By evening, the UV levels decrease significantly, settling back to 1 by 7:00 PM. Stay safe and safeguard your skin during peak sun 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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Lanai City

The UV Index demonstrates significant seasonal variation, with the highest levels occurring from March to October, peaking at 13 during the summer months of June to August. This period is categorized as extreme, with a burn time as short as 10 minutes for unprotected skin, indicating a high risk for sunburn. Notably, January and February also present very high exposure levels, with indices of 8 and 10, respectively, but longer burn times of 15 minutes. As such, both visitors and residents should take proactive measures to protect themselves during these months, especially between March and September when the UV Index is at its most dangerous. Recommendations include wearing broad-spectrum sunscreen, protective clothing, and seeking shade, particularly during peak sunlight hours.

Monthly Maximum UV Index for Lanai City, United States

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

The table above highlights how UV exposure in Lanai City 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.

Lanai City'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
Lanai City	8	10	11	12	12	13	13	13	12	11	8	8