Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Palmeira das Missões, Brazil, where sun exposure can significantly impact skin health. With the region’s Cfa climate characterized by warm summers and moderate sunlight, it's important to be aware of UV levels throughout the day, especially during peak hours between 10 AM and 2 PM when the index reaches 5. By monitoring the UV Index, you can effectively prevent sunburn and protect your skin from harmful effects, ensuring a safer and more enjoyable outdoor experience in this vibrant locale.
As the sun rises, the UV Index starts at a safe 0 at 7:00 AM, gradually warming up with the morning light. By 8:00 AM, it reaches 1, indicating low exposure risk. The intensity picks up between 9:00 AM and 12:00 PM, peaking at a moderate 5 around 12:00 PM. This level persists until 2:00 PM, ensuring outdoor enthusiasts can soak up the sun while staying aware of their skin protection. However, the UV Index begins to decline as the afternoon wears on; at 3:00 PM, it drops to 3, further decreasing to 1 by 5:00 PM. By 6:00 PM, the UV exposure falls back to 0—a perfect time to unwind as the sun sets. Enjoy the daylight wisely!
| 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, the UV Index exhibits significant seasonal fluctuations, with extreme levels particularly pronounced from January to March and again in October to December. During these high-risk months, especially in January and February with an index of 15 and a burn time of just 10 minutes, individuals are at increased risk of skin damage. The spring months, notably April, shift to a very high exposure category with a UV Index of 10, while May and August mark a transition to high levels. From June to July, the UV Index lowers to moderate, allowing for slightly longer safe exposure times up to 30 minutes. As the season shifts back to autumn, September returns to very high, underlining the need for vigilance. To protect yourself, it's advisable for visitors and residents to utilize broad-spectrum sunscreen, seek shade, and wear protective clothing, especially during the extreme months of the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Palmeira das Missoes | 15 | 14 | 13 | 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 |