UV Index in Stuart, United States

Last updated: June 2, 2025

In Stuart, United States, staying informed about the UV Index is crucial for your skin health and overall well-being. Understanding UV levels helps you take proactive measures against sunburn and long-term skin damage, making it essential for both residents and visitors alike. With a Dfa climate, Stuart experiences varied UV exposure throughout the day, peaking at a high of 10 around noon. As the sun’s intensity increases, being aware of these UV levels allows you to enjoy the outdoors safely while protecting your skin from harmful rays.

Hourly UV Index in Stuart

The UV Index is a dynamic measure of solar intensity throughout the day, peaking dramatically at 12:00 PM with a notable 9, reaching its zenith at 1:00 PM and 2:00 PM with a maximum value of 10. During this period, it's essential to protect your skin from harmful UV rays. Early morning hours remain quite low, peaking at just 1 by 08:00 AM, while by 10:00 AM the index climbs to 5. As the sun continues to rise, it climbs swiftly to 7 by 11:00 AM, making midday the crucial time for sunscreen and shade. As the afternoon wanes, the UV Index gradually decreases, falling back to 5 by 5:00 PM, and finally settling at 1 by 7:00 PM, signaling a safe return to outdoor activities. Stay vigilant and enjoy the sunshine safely!

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.
TimeUVICategoryTime to Burn
07:001low45 min
08:001low45 min
09:003moderate30 min
10:005moderate30 min
11:007high25 min
12:009very high15 min
13:0010very high15 min
14:0010very high15 min
15:009very high15 min
16:007high25 min
17:005moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Stuart

As the seasons change, so do UV levels, which are crucial for both residents and visitors to consider. From January to February, the UV Index is relatively moderate (3-5), allowing for longer exposure times of 30 minutes before burning. However, as we transition into March, the index rises to 6, marking the beginning of higher risk, with burn time decreasing to 25 minutes. The summer months of April through August experience significantly elevated UV levels, peaking at 10 with a very high exposure category, necessitating caution as burn times drop to just 15 minutes. September sees a slight dip to 8, while October and November return to 6 and 4, respectively, offering a reprieve before winter, where December presents a low UV Index (2) with an extended burn time of 45 minutes. To protect against UV exposure, particularly during the high-risk months from April to September, visitors and residents should wear sunscreen, protective clothing, and limit sun exposure, especially between 10 AM and 4 PM.

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.
JanFebMarAprMayJunJulAugSepOctNovDec356891010108542
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.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Stuart356891010108642
Los Angeles UVI46891011111010754
Houston UVI589111112121110975