Last updated: July 2, 2025
In Maceio, Brazil, being aware of the UV Index is essential for maintaining your skin health and preventing sunburn. Understanding the varying levels of UV radiation throughout the day can empower residents and visitors alike to take necessary precautions during peak UV hours, especially between 10 AM and 2 PM when the index reaches a high of 10. Given Maceio's hot tropical climate, it’s crucial to protect your skin from sun damage, as prolonged exposure can lead to serious health issues. Stay informed about UV levels and enjoy the sun safely while embracing the stunning beauty of this coastal paradise!
As the sun rises, the UV Index begins to climb, starting at a gentle 1 at 07:00. By 08:00, it escalates to a moderate 3, but the real intensity hits by 10:00, peaking at a striking 10 from 11:00 to 12:00—a clear signal for sun safety awareness. As the afternoon progresses, the index gradually declines, dipping to 8 at 13:00 and then swiftly dropping to 5 by 14:00. The evening brings relief, with levels decreasing to 3 at 15:00, and falling to 1 by 16:00. As the day fades away, the UV risk diminishes further, reaching 0 by 19:00. Remember to protect your skin during those 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 | 5 | moderate | 30 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 |
The UV Index experiences significant seasonal changes, indicating the intensity of ultraviolet radiation and its potential health risks. During the winter months (January to March) and early spring (April), the UV Index remains consistently high at 14, classified as extreme, with a quick burn time of just 10 minutes. As summer approaches, particularly in June and July, the UV Index drops slightly to 10, categorized as very high, allowing for a slightly longer burn time of 15 minutes. However, in late summer to early fall (August to October), the Index rebounds to extreme levels again, peaking at 13 in September and October. Notably, November and December revert to extreme UV levels of 14. Given these high UV readings, visitors and residents are strongly advised to exercise caution, wearing protective clothing, applying broad-spectrum sunscreen frequently, and seeking shade, especially during peak hours from 10 a.m. to 4 p.m.
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 |
| Maceio | 14 | 14 | 14 | 14 | 12 | 10 | 10 | 12 | 13 | 13 | 14 | 14 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |