UV Index in Lahaina, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Lahaina, United States, where the sun shines brightly and temperatures rise consistently. Awareness of UV levels not only aids in sunburn prevention but also plays a significant role in promoting overall skin health. With Lahaina's tropical climate, the risk of high UV exposure increases, especially during peak hours when the index can soar to dangerous levels, peaking at 13 around noon. Staying informed about the UV Index can help you make better decisions about sun protection and enjoy all that this beautiful coastal town has to offer safely.

Hourly UV Index in Lahaina

The UV Index during the day reveals a notable peak in sun exposure. Starting at 07:00 with a gentle 1, it gradually climbs to 2 by 08:00. As the sun rises higher, the index surges dramatically, hitting 5 at 09:00, and reaching a striking 8 by 10:00. The intensity peaks at 12:00 with a scorching 13, remaining high until 13:00. After that, it starts to decline, returning to 11 at 14:00 and falling to 8 by 15:00. As the afternoon wanes, the index drops to 5 at 16:00, and finally settles back to 1 by 18:00 and 19:00. This data highlights the importance of sun safety measures during the midday hours when UV exposure is at its highest.

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	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	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	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 Lahaina

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 Lahaina, United States

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

The table above highlights how UV exposure in Lahaina 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.

Lahaina'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
Lahaina	8	10	11	12	12	13	13	13	12	11	8	8