Last updated: June 2, 2025
In Santo Antonio do Sudoeste, understanding the UV Index is essential for protecting your skin and ensuring your overall health. With UV levels peaking at 5 during midday hours, residents and visitors should be aware of their sun exposure to prevent sunburn and long-term skin damage. Nestled in a Cfa climate zone, this charming Brazilian town experiences varying UV intensity, making it crucial to stay informed about local conditions. By keeping an eye on the UV Index, you can enjoy the sunny days safely while prioritizing your skin health.
The UV Index for the day begins at a safe 0 at 07:00, making it the perfect time for morning activities. As the sun rises, the index gradually climbs to 1 by 08:00 and 2 by 09:00. The intensity peaks between 11:00 and 13:00, reaching a maximum value of 5—a key time for sun protection! Following this, the UV levels gradually decline, dropping to 4 at 14:00 and then tapering off to 3 by 15:00. As afternoon gives way to evening, the UV Index decreases steadily to 1 at 17:00 and finally back to 0 by 19:00. Remember to enjoy the sun responsibly during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 4 | 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 shows significant seasonal changes, with extreme levels persisting from January through April and again in October through December, indicating a high risk for skin damage with a burn time of just 10 minutes during these months. February and November consistently display the highest UV Index at 15, marking them as particularly hazardous. From May to September, the UV Index decreases but still presents notable risks, especially during July and August, when the index ranges from 6 to 8, requiring a burn time of 15 to 25 minutes. To protect against harmful UV radiation, both visitors and residents should take precautions during high-risk months, especially from January to April and in October and November, by wearing protective clothing, applying sunscreen, and seeking shade when possible.
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 |
| Santo Antonio do Sudoeste | 15 | 15 | 13 | 11 | 7 | 5 | 6 | 8 | 10 | 13 | 15 | 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 |