Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Grand Bay, United States, given the region's humid subtropical climate. With peak UV levels reaching as high as 12 during midday, awareness of these figures can be vital in preventing sunburn and protecting skin health. In a place where sunny days are plentiful, especially in the summer months, knowing when UV exposure is at its highest can help you make informed choices about outdoor activities. Prioritizing UV safety is not just about comfort; it's an essential step towards long-term skin wellness and overall health. Stay informed and enjoy the bright sun responsibly!
As the sun rises, the UV Index begins its gradual climb from 1 at 7:00 AM, indicating minimal risk. By 9:00 AM, it reaches 4, signaling a moderate UV level. The intensity peaks dramatically at 12:00 PM, hitting an impressive 11, categorized as very high, before peaking at 1:00 PM with a maximum of 12. This is the hour to take extra precautions! As the afternoon progresses, the index gradually declines to 9 by 3:00 PM and further to 6 by 4:00 PM. As evening approaches, the UV levels drop quickly, falling back to 3 at 5:00 PM and returning to a safe 1 by 7:00 PM. For a day full of sunshine, remember to stay protected during the peak UV hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels fluctuate, with high-risk months primarily falling between February and August. Notably, April to July feature an extreme UV Index of 11 to 12, necessitating precautions to limit sun exposure to just 10 minutes during peak hours. February and March present significant risks as well, with very high UV levels of 8 and 9, leading to burn times of only 15 minutes. To safeguard your skin, residents and visitors are advised to minimize exposure during peak sun hours, wear protective clothing, and use broad-spectrum sunscreen. As the year progresses, November and December offer lower UV levels, classified as high and moderate, respectively, allowing for longer safe exposure times of 25 to 30 minutes.
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 |
| Grand Bay | 5 | 8 | 9 | 11 | 11 | 11 | 12 | 11 | 10 | 8 | 6 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |