UV Index in Naples, United States

Last updated: May 3, 2025

In Naples, Florida, understanding the UV Index is crucial for safeguarding your skin against harmful sun exposure. Knowledge of UV levels not only helps prevent painful sunburns but also plays a vital role in long-term skin health. With a humid subtropical climate that often features bright, sunny days, Naples experiences significant UV radiation, particularly during midday hours when indices can soar to 11 or 12—indicating an extreme risk of harm from unprotected sun exposure. Stay informed and protect yourself while enjoying the beautiful Naples outdoors!

Hourly UV Index in Naples

As the sun rises, the UV Index gradually escalates, starting from a gentle 1 at 7:00 AM. By 9:00 AM, it reaches a moderate 3, hinting at the day's potential. The intensity peaks at 12:00 PM, where the index soars to a striking 11, indicating high risk for harm from unprotected sun exposure. Though it dips slightly to 9 by 3:00 PM, the UV levels remain significant. As the afternoon fades, the index gradually decreases to 2 by 6:00 PM, and finally settles back to a mild 1 as day turns to dusk at 7:00 PM. It’s crucial to stay vigilant—during peak hours, particularly between 11:00 AM and 1:00 PM, appropriate sun protection is essential to safeguard against harmful UV radiation.

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	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 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 Naples

Throughout the year, UV Index values exhibit notable seasonal changes, with high-risk months primarily between March and August. During these months, the UV Index peaks at 11-12, indicating an extreme exposure category, which reduces burn times to just 10 minutes. Visitors and residents should take extra precautions during these months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sun hours. Conversely, from January to February and November to December, the UV Index fluctuates between 4 and 7, classified as moderate to high, allowing for a longer burn time of 25 to 30 minutes. Awareness of these seasonal variations is crucial for ensuring skin safety while enjoying outdoor activities year-round.

Monthly Maximum UV Index for Naples, United States

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

The table above highlights how UV exposure in Naples 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.

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