Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Aguas Vermelhas, Brazil, as it plays a vital role in protecting your skin from harmful ultraviolet radiation. The importance of monitoring UV levels cannot be overstated; with high readings, there's an increased risk of sunburn and long-term skin damage. Aguas Vermelhas, characterized by its warm Aw climate, experiences notable UV exposure, especially between 10 AM and 2 PM when the index peaks at 10. This makes it essential to stay informed and take necessary precautions to safeguard your skin while enjoying the beautiful sunny days this region has to offer.
The UV Index throughout the day shows a dynamic pattern of sun exposure. Starting at a low of 1 at 07:00, it gently rises to 2 by 08:00. As the morning progresses, the intensity increases more noticeably, peaking at a striking 10 at 12:00, marking the highest level of sun strength. From there, the index begins its descent, falling to 8 at 13:00 and tapering off to 6 by 14:00. The afternoon witnesses a further decline, with values dropping to 3 at 15:00 and easing to 1 by 17:00. As the sun sets, the index finally drops to 0 at 18:00 and remains insignificant through the evening hours. This data highlights the importance of protecting your skin during peak hours, especially from 10:00 to 14:00, when the UV exposure is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | 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 | 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 |
The UV Index data reveals significant seasonal fluctuations, with extreme exposure levels persisting from January to May, and again in August, September, October, and November. The months of January to April consistently feature a very high UV Index, peaking at 16 in January and November, with a burn time of just 10 minutes. Transitioning into summer, June and July present a slightly lower but still considerable risk, with a UV Index of 9 and 10 respectively, allowing for a burn time of 15 minutes. Visitors and residents should take precautions during these high-risk months—particularly from January to May—and don protective clothing, use sunscreen with a high SPF, and seek shade, especially between 10 AM and 4 PM when UV radiation is at its peak. Staying informed and vigilant can help minimize the risk of UV exposure year-round.
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 |
| Aguas Vermelhas | 16 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 12 | 14 | 16 | 15 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |