Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of Colonia Leopoldina, Brazil, where the sun's rays can pose significant health risks, especially during peak hours. In a region characterized by its sunny climate, recognizing the levels of UV exposure helps in preventing sunburn and protecting skin health. With UV Index ratings soaring to 11 around midday, awareness becomes vital to enjoy outdoor activities safely while minimizing potential damage from harmful rays. Stay informed to keep your skin safe and enjoy the vibrant outdoors that Colonia Leopoldina has to offer!
During the day, the UV Index experiences a dynamic fluctuation. Starting from a calm 1 at 07:00, it rises steadily, peaking at an intense 11 by 11:00, indicating a high risk of harm from unprotected sun exposure. As the clock hits 12:00, it slightly drops to 10, but remains within the very high range. The afternoon sees a gradual decline, dropping to 6 by 14:00, and further down to 3 by 15:00, signaling a safer environment for outdoor activities. As the sun sets, the index plummets to 1 by 16:00 and ultimately reaches 0 by 18:00, leaving a serene evening ahead. Always remember to protect your skin when the UV Index is high!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 9 | 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 |
The UV Index remains consistently high throughout the year, with extreme levels recorded from January to November, particularly peaking in March and November at an index of 15. Key high-risk months for UV exposure include January, February, March, April, November, and December, where the index hovers around 14-15, indicating a burn time as short as 10 minutes. Visitors and residents should take significant precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during midday hours, to minimize the risk of sunburn and long-term skin damage.
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 |
| Colonia Leopoldina | 14 | 14 | 15 | 14 | 12 | 11 | 11 | 12 | 13 | 13 | 15 | 14 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |