UV Index in Islamorada, United States

Last updated: June 2, 2025

In Islamorada, United States, being aware of the UV Index is crucial for safeguarding your skin and overall health. With high UV levels typically peaking around noon—reaching an intensity of 12—understanding these readings can help you make informed decisions about sun protection to prevent sunburn and long-term skin damage. The dreamy climate of Islamorada, characterized by warm temperatures and abundant sunshine, amplifies the risks associated with UV exposure. By staying informed about the UV Index, you can fully enjoy the beauty of Florida’s sun while keeping your skin safe and healthy.

Hourly UV Index in Islamorada

As the day unfolds, the UV Index reveals a dynamic shift in sun exposure. Early hours see a gentle start, with values of 1 at both 07:00 and 08:00. However, by 09:00, it climbs to 3, signaling an increase in UV intensity. The real peak occurs around midday, where the index soars to a scorching 12 at 12:00 and reaches its zenith with a striking 13 at 13:00 and 14:00—a reminder to seek shade and protect your skin. The intensity gradually wanes, dipping to 10 by 15:00 and then descending to 4 at 17:00, before evening settles in with a gentle 2 at 18:00 and returning to 1 by 19:00. Balancing safety with sun enjoyment is key as the day transitions from peak exposure to the soothing dusk.

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	6	high	25 min
11:00	9	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	13	extreme	10 min
15:00	10	very high	15 min
16:00	7	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 Islamorada

Throughout the year, UV exposure varies significantly, with the highest levels typically occurring from March to September. During this peak season, particularly in April, May, June, and July, the UV Index reaches an extreme category of 12-13, allowing as little as 10 minutes of unprotected sun exposure before burning occurs. February also sees a very high UV Index of 9, while October and November remain at very high levels of 8-10. Conversely, January and December experience high exposure categories but with a longer burn time of 25 minutes. Given these patterns, residents and visitors should exercise caution from late winter through early fall, utilizing sunscreen, protective clothing, and seeking shade to minimize skin damage during the high-risk months.

Monthly Maximum UV Index for Islamorada, United States

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

The table above highlights how UV exposure in Islamorada 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.

Islamorada'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
Islamorada	6	9	10	12	12	13	12	12	12	10	8	6