Last updated: July 2, 2025
In Cavalcante, Brazil, understanding the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. With the potential for sunburn and long-term skin damage increasing as UV levels rise, being aware of these metrics can help you take proactive measures in your outdoor activities. Cavalcante, characterized by its tropical climate, typically experiences high UV exposure, especially during peak hours between 10 AM and 2 PM, when UV levels can soar to a critical 10. By staying informed about the UV Index, you can enjoy the beautiful Brazilian sun while protecting your skin health and overall well-being.
The UV Index throughout the day showcases a significant rise in sun exposure, starting low at 1 at 07:00 and reaching its peak of 10 between 12:00 and 13:00. This suggests a high level of UV radiation during midday, making it crucial for individuals to take precautions to protect their skin. As the afternoon progresses, the UV Index begins to decline, dropping to 5 by 15:00 and further decreasing to 1 by 17:00. By 18:00, it returns to 0, indicating a safe period with no UV exposure. It's clear that the strongest UV radiation is concentrated in the midday hours; therefore, staying shaded and applying sunscreen during this time is highly recommended for safety.
| 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 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV index readings reflect a significant seasonal variation, with extreme levels persisting from January to April and peaking at 17 in January. May marks a slight decrease to 11, transitioning to a very high UV level in June and July (9 and 10, respectively). Notably, the UV index again escalates to extreme levels from August through October, with values reaching 15 in October and November. The highest risk months for sun exposure are from January to April and August to October, where the burn time is notably low—just 10 minutes—underlining the importance for visitors and residents alike to take precautionary measures during these months. It is strongly advised to seek shade, wear protective clothing, and apply sunscreen regularly, especially during peak sunlight hours.
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 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |
| Cavalcante | 17 | 15 | 15 | 14 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 16 |