Last updated: June 2, 2025
In Jupiter Island, Florida, being mindful of the UV Index is essential for safeguarding your skin and overall health. The UV Index measures the strength of sun's ultraviolet (UV) rays, which can lead to painful sunburns, accelerated skin aging, and increased risk of skin cancer. With Jupiter Island's Cfa climate, characterized by warm summers and mild winters, residents and visitors face unique UV exposure risks throughout the year. Understanding and tracking UV levels, especially during peak hours when the intensity reaches a high of 12 around midday, empowers you to take preventive measures and enjoy the sun safely.
The UV Index data for the day reveals a clear progression of solar intensity as the hours unfold. Starting the morning with low values of 1 at 7:00 AM and 8:00 AM, the index begins to rise significantly by 9:00 AM, reaching 3. The sun's potency peaks sharply at 12:00 PM with a staggering value of 11, indicating a high risk of harm from unprotected sun exposure. This intensity remains elevated at 12 from 1:00 PM to 2:00 PM, before starting to decline as the afternoon turns to evening. By 3:00 PM, it falls to 10, and further decreases to 4 by 5:00 PM. As the sun sets, the UV Index tapers off to 2 at 6:00 PM and returns to 1 by 7:00 PM. It’s a day that strongly emphasizes the importance of sun safety during peak hours!
| 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 | 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 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels fluctuate significantly, with the highest risk months being from March to September, where the UV Index reaches extreme levels of 11-12 and burn times can be as short as 10 minutes. The transition into spring starts with rising indices in February (9), peaking in the summer months. Residents and visitors should take precautions during this period by using broad-spectrum sunscreen, wearing protective clothing, and seeking shade, especially during midday hours. Conversely, fall and winter months show a decrease in UV intensity, with burn times lengthening—up to 30 minutes in December—but it's still advisable to remain vigilant about sun exposure, particularly in sunnier days.
UV Risk Categories
| 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 |
| Jupiter Island | 6 | 9 | 10 | 11 | 11 | 12 | 12 | 12 | 11 | 10 | 7 | 5 |