Last updated: July 2, 2025
Understanding the UV Index in Sao Luis do Quitunde, Brazil, is crucial for protecting your skin against harmful ultraviolet rays. Given the area's tropical climate and consistent exposure to sunlight, awareness of UV levels can help prevent sunburn and promote long-term skin health. With peak UV Index readings reaching 10 during late morning to early afternoon, residents and visitors alike must take precautions to safeguard their skin. Stay informed and enjoy the beautiful outdoor activities that Sao Luis do Quitunde has to offer while minimizing your risk of UV-related harm!
The UV Index for the day shows a steady climb as the sun rises, hitting its peak between 11:00 AM and 12:00 PM with a maximum value of 10. During this peak period, caution is advised as UV radiation can be extremely harmful. As the afternoon progresses, the index begins a gradual decline, dropping to 8 by 1:00 PM and tapering off to 3 at 3:00 PM. As the sun sets, the UV Index decreases further, reaching 0 by 6:00 PM and remaining there for the evening, signaling a safe time to enjoy outdoor activities without the risk of overexposure. Remember to wear sunscreen and protective clothing during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index remains significantly high, indicating extreme levels of ultraviolet radiation for most months. From January to April, the UV Index consistently reaches 14, resulting in a burn time of just 10 minutes—a clear indicator of high risk for sunburn. This extreme exposure continues into May with a slight decrease to 12, but it maintains an extreme level. June sees a minor dip to 11, followed by July at 10, where the category shifts to very high and burn time extends to 15 minutes. August and September revert back to extreme levels with UV indexes of 12 and 13 respectively, and burn times returning to 10 minutes. Notably, November peaks at 15, thus remaining extremely high, while December returns to 14. Visitors and residents should take precautionary measures, especially from January to April and again in November, by seeking shade, wearing protective clothing, and applying sunscreen to minimize the risk of harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rio de Janeiro UVI | 15 | 14 | 13 | 10 | 7 | 6 | 7 | 9 | 11 | 12 | 13 | 15 |
| Sao Paulo UVI | 16 | 15 | 12 | 11 | 8 | 6 | 7 | 9 | 11 | 13 | 14 | 15 |
| Belo Horizonte UVI | 17 | 16 | 14 | 12 | 9 | 7 | 8 | 10 | 12 | 13 | 14 | 16 |
| Salvador UVI | 14 | 14 | 14 | 13 | 10 | 9 | 9 | 12 | 12 | 15 | 15 | 14 |
| Sao Luis do Quitunde | 14 | 14 | 14 | 14 | 12 | 11 | 10 | 12 | 13 | 13 | 15 | 14 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |