Last updated: June 2, 2025
Understanding the UV Index in Cudjoe Key is crucial for anyone looking to enjoy the sunshine safely in this beautiful part of the Florida Keys. With its warm Aw climate, residents and visitors alike are exposed to varying UV levels throughout the day, peaking at an alarming UV Index of 13 between 1 PM and 2 PM. Being aware of these levels is essential for preventing sunburn and promoting overall skin health, as excessive UV exposure can lead to serious long-term effects. Cudjoe Key's inviting beaches and outdoor activities make it all the more important to track the UV Index, ensuring you stay protected while enjoying the natural beauty around you.
As the sun rises on this bright day, the UV Index starts off relatively low, peaking at just 1 at both 7:00 AM and 8:00 AM. However, by 9:00 AM, it jumps to 3, signaling an increase in UV exposure. The intensity escalates quickly, reaching a notable 6 by 10:00 AM. The real intensity hits its peak at 12:00 PM, when the UV Index soars to a striking 12, followed closely by a high of 13 at 1:00 PM. Over the next few hours, the index gradually diminishes, but still remains significant with 10 at 3:00 PM and 7 by 4:00 PM. As evening approaches, the levels continue to decline, returning to 1 once dusk settles in at 7:00 PM. Be sure to protect your skin!
| 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 | 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 Index levels fluctuate significantly, reaching their peak during the warmer months. From January to December, the high-risk months for UV exposure are February through September, where the index consistently falls within the very high to extreme categories. Particularly alarming are March, April, May, June, July, August, and September, with a persistent index of 11 or higher, resulting in a burn time as short as 10 minutes. To protect against skin damage, it is crucial for both visitors and residents to take preventive measures during these months, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the sun's rays are strongest. As October to December approach, while the UV levels decrease, caution is still advised with burn times of 15 to 25 minutes in November and December. Always stay informed and protect your skin year-round!
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 |
| Cudjoe Key | 6 | 9 | 11 | 12 | 12 | 13 | 12 | 12 | 11 | 10 | 8 | 6 |