Last updated: August 1, 2025
Being aware of the UV Index in Santo Angelo, Brazil, is crucial for safeguarding your skin and promoting overall health. As the sun shines brightly in this Cfa climate zone, understanding UV levels is essential for effective sunburn prevention and maintaining skin health. With peak UV levels reaching up to 5 between noon and 2 PM, residents and visitors alike should be vigilant about sun exposure during these hours. By staying informed, you can enjoy the beautiful Brazilian sun while protecting yourself from harmful effects of UV rays.
Today’s UV Index paints a clear picture of the sun's intensity throughout the day. Beginning at a cool 0 at 07:00, the UV levels gradually rise, reaching a mild 1 by 08:00 and 09:00. As the clock strikes 10:00, the index jumps to 3, signaling a moderate risk. The sun blazes at 12:00, peaking at 5, a time to apply that sunscreen if you plan to be outdoors! This peak remains steady until 14:00, before it begins to dip. By 15:00, UV levels drop to 3, and by 17:00, they cool off to 1. As the day winds down, the UV Index returns to a safe 0 by 18:00 and remains there through the evening. Stay protected under the midday sun to enjoy your day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The seasonal UV changes reveal significant fluctuations, with the highest UV Index levels recorded from January to March, where the index hits an extreme 15, necessitating only 10 minutes for skin to start burning. As spring approaches, April sees a decrease to a very high level of 10, allowing for slightly longer exposure at 15 minutes before burning. The summer months of May to July feature a moderate UV Index ranging from 5 to 6, with burn times extending to 25-30 minutes. However, high-risk months return in August, and from September to November, where UV levels reignite to extreme and very high categories. Notably, October and November pose significant risk again with indices of 13 and 14, respectively, allowing for just 10 minutes before burn. Residents and visitors are advised to take precautions, especially during January through March and October through November, by utilizing protective clothing, sunscreen, and limiting sun exposure during these peak times to avoid skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santo Angelo | 15 | 14 | 12 | 10 | 6 | 5 | 5 | 7 | 10 | 13 | 14 | 14 |
| 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 |