UV Index in Stuart, United States

Last updated: May 3, 2025

Understanding the UV Index in Stuart, United States is crucial for maintaining skin health and preventing sunburn. With its Cfa climate, Stuart experiences significant UV exposure, especially during peak hours when levels can soar to 11. Being informed about the UV Index not only helps residents and visitors protect themselves from the harmful effects of ultraviolet rays, but also promotes a healthy lifestyle in the sun-drenched paradise that is Stuart. Whether you’re planning a beach day, outdoor activities, or simply enjoying the local parks, knowing the UV levels can ensure you stay safe and sun-smart all year round.

Hourly UV Index in Stuart

As the day unfolds, the UV Index ramps up rapidly, starting from a gentle 1 at 7:00 AM and gradually climbing to reach a peak of 11 by 1:00 PM and 2:00 PM. This hour marks the height of sun exposure, where the risk of harm from unprotected sun exposure is significant. After this peak, the index begins to descend, dropping to 9 by 3:00 PM, then tapering off to 6 at 4:00 PM, and finally settling back to a mild 1 by 7:00 PM. For those planning outdoor activities, early afternoon is best approached with caution and protection—a reminder that while the sun can be enjoyable, it demands respect!

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	10	very high	15 min
13:00	11	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 Stuart

Throughout the year, UV exposure significantly fluctuates, with the highest risk months occurring from March through September, where the UV Index consistently reaches extreme levels of 10 to 12. Specifically, April to August presents the greatest danger with an unprecedented UV Index of 12, allowing only a mere 10 minutes before burning may occur. January and November pose moderate to high risks, while December offers the safest conditions with a reduced UV Index of 5. Residents and visitors are strongly advised to take precautionary measures during high-risk months, such as wearing sunscreen, protective clothing, and seeking shade to minimize UV exposure and reduce the risk of sunburn.

Monthly Maximum UV Index for Stuart, United States

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

The table above highlights how UV exposure in Stuart 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.

Stuart'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
Stuart	6	9	10	11	11	12	12	12	11	9	7	5