Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of South Bay, United States, where sunlight intensifies, particularly during peak hours. With UV levels soaring to a dangerous 12 at midday, awareness of these ratings is essential for sunburn prevention and maintaining skin health. South Bay's Mediterranean climate contributes to significant UV exposure risks year-round, making it vital to check local UV levels regularly to enjoy the outdoors safely. By being informed about the UV Index, you can protect yourself and be proactive about your skin's well-being.
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 |
The UV Index reflects notable seasonal changes, with the highest levels occurring from March to September, where values frequently reach the extreme category of 10 to 12. February marks the beginning of very high UV levels, with risks peaking in April through August. Notably, April through September poses the greatest risk, featuring 10 minutes of potential burn time under maximum sun exposure. Individuals are advised to take precautions during these high-risk months by seeking shade, wearing protective clothing, and applying sunscreen regularly. Conversely, November and December provide more moderate levels of exposure, allowing for longer burn times of 25 to 30 minutes, but individuals should remain mindful during all months, as UV rays can still cause damage.
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 |
| South Bay | 6 | 9 | 10 | 12 | 11 | 12 | 12 | 12 | 11 | 10 | 7 | 5 |