Last updated: August 1, 2025
In Julio de Castilhos, Brazil, staying informed about the UV Index is crucial for protecting your skin from harmful rays. Higher UV levels can lead to sunburn and long-term skin damage, making it essential to monitor these fluctuations throughout the day. With a Cfa climate that features warm summers and ample sunshine, residents face unique challenges regarding UV exposure, especially during peak hours. Understanding the UV Index not only helps you plan outdoor activities but also promotes skin health by encouraging protective measures when the sun's intensity is greatest. Stay sun-safe and make informed choices for a healthier lifestyle in beautiful Julio de Castilhos!
The UV Index for today paints a story of a steadily rising sun, reaching its peak in the early afternoon. Starting at 0 at 7 AM, the index climbs cautiously to 1 by 8 AM and remains at this level until 10 AM. As the day progresses, the UV intensity spikes to 4 by 11 AM and reaches its maximum of 5 at both 12 PM and 1 PM, urging sunseekers to apply that sunscreen! The afternoon sees a gradual decline, with the UV Index dipping back to 4 at 2 PM, then 3 at 3 PM, falling further to 2 by 4 PM. As evening approaches, the UV levels drop to 1 by 5 PM, finally settling back to 0 as the sun sets. Stay sun-safe during those peak hours!
| 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 |
Throughout the year, UV index levels display significant seasonal variation, with extreme exposure categories occurring from January to March and again in October to November. The high-risk months include January, February, March, October, and November, where the UV index reaches 14-15, indicating a burn time as short as 10 minutes. As the seasons progress, UV levels decrease in late spring and summer, peaking at a moderate index of 5 in June and July before rising again in September. To protect yourself, it is crucial to take precautions during these high-risk months, such as seeking shade, wearing protective clothing, and applying sunscreen frequently, especially when you plan to be outdoors for an extended period.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Julio de Castilhos | 15 | 14 | 12 | 10 | 6 | 5 | 5 | 7 | 10 | 13 | 14 | 15 |
| 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 |