Last updated: July 2, 2025
In Rio Brilhante, Brazil, awareness of the UV Index is crucial for protecting your skin from the sun’s harmful rays. Understanding UV levels helps you take essential precautions to prevent sunburn and maintain long-term skin health, especially during the peak hours when the index reaches 8 around midday. With a tropical climate that exposes residents to elevated UV risks, knowledge about daily UV fluctuations can empower you to enjoy the sun safely, ensuring a balance between outdoor activities and skin protection. Keep an eye on the UV Index to safeguard your skin while soaking in the beauty of Rio Brilhante!
As the sun rises, the UV Index begins its climb, starting at a mild 1 at 07:00. By 08:00, it nudges up to 2, but the real surge begins as we approach midday. At 09:00, it reaches 4, and by 10:00, it hits 6—a clear sign to apply that sunscreen! The peak UV intensity occurs from 11:00 to 12:00, where it soars to an impressive 8, making it crucial to seek shade and wear protective clothing. As the afternoon rolls in, the index gradually decreases—7 at 13:00, 5 at 14:00, before plunging to 2 by 15:00. Finally, from 16:00 to 19:00, the UV Index dwindles down to 1 and finally 0, marking the end of a day where sun safety was paramount during those peak hours. Stay vigilant under the sun!
| 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 2 | low | 45 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 demonstrates significant seasonal variation, with the highest levels occurring during the winter and late fall months. From January to April, the UV Index remains in the extreme exposure category (15 to 11), with a rapid burn time of just 10 minutes. This extreme risk continues into September and October, matching the highest readings, while November also presents a notable UV Index of 14. The high-risk months are primarily January through April, and again in September through November. As the months progress to May through August, the levels decrease slightly, categorized as very high to high, allowing slightly longer burn times of 15 to 25 minutes. It is advisable for both visitors and residents to exercise extreme caution during peak UV times, particularly in the first half of the year, using appropriate sun protection measures such as sunscreen, hats, and protective clothing.
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 |
| Rio Brilhante | 15 | 15 | 13 | 11 | 8 | 7 | 8 | 10 | 11 | 14 | 14 | 16 |
| 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 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |