UV Index in Captiva, United States

Last updated: June 2, 2025

In Captiva, United States, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. With the area's Cfa climate, which features warm, humid summers, understanding the daily UV levels can help residents and visitors alike make informed decisions about outdoor activities. Notably, the UV Index reaches its peak at noon, fluctuating from a manageable level of 3 in the morning to an intense 12 by early afternoon. By keeping a close eye on these levels, you can enjoy the beautiful Florida sunshine safely while protecting your skin from harmful effects.

Hourly UV Index in Captiva

As the sun rises, the UV Index begins its gentle ascent, peaking at 1 around 7:00 AM and remaining low until 9:00 AM, when it jumps to 3. By 10:00 AM, the intensity escalates to 5, signaling that it’s time to take precautions. The sun reaches its zenith at 12:00 PM, with a scorching 11, followed closely by a peak of 12 at 1:00 PM and 2:00 PM. As the afternoon wears on, the index starts to decline, dipping to 10 by 3:00 PM, and continuing to decrease to 5 at 5:00 PM. As twilight approaches, the UV threat diminishes, settling back to 1 by 7:00 PM. Stay sun-safe during the peak hours of 11:00 AM to 2:00 PM, when the UV levels are their most dangerous!

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	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Captiva

Throughout the year, the UV Index reflects significant seasonal changes, with high-risk months primarily occurring from February to September. During this period, the UV Index reaches extreme levels, particularly peaking at 12 in April, June, July, and August, where a mere 10 minutes of exposure can lead to skin damage. As we transition into fall and winter, the UV Index gradually decreases, reaching 6 in January and December, still indicating high risk, especially with a 25-minute burn time. Visitors and residents are advised to take appropriate precautions during the high and extreme UV months, including wearing broad-spectrum sunscreen, protective clothing, and sunglasses, and to seek shade whenever possible, particularly between 10 AM and 4 PM when UV rays are most intense.

Monthly Maximum UV Index for Captiva, United States

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

The table above highlights how UV exposure in Captiva 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.

Captiva'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
Captiva	6	9	10	12	11	12	12	12	11	10	8	6