Last updated: July 2, 2025
In Nova Friburgo, Brazil, understanding the UV Index is crucial for everyone who enjoys the sun-soaked beauty of this picturesque locale. With UV levels peaking at 7 during midday hours, the importance of staying informed cannot be overstated—awareness helps in preventing sunburn and protecting skin health. This charming region falls within a Cfa climate zone, which means it enjoys warm, humid summers, making it essential to know the risks associated with high UV exposure. By keeping an eye on UV levels, residents and visitors alike can take proactive steps to enjoy the outdoors safely while safeguarding their skin.
The UV Index throughout the day paints a vivid picture of sun intensity, starting at a modest 1 at 07:00 and gradually climbing to its peak of 7 from 11:00 to 13:00. This high level signifies a heightened risk for prolonged sun exposure, perfect for sun lovers but cautionary for the rest. From the peak, the index starts to dip, dropping to 5 at 14:00 and dwindling to 1 by 16:00. As the sun begins to set, the UV Index plummets to 0 by 18:00 and remains in the safe zone through the evening. Plan your outdoor activities wisely, ensuring midday sun protection while enjoying the earlier and later hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | 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 |
Throughout the year, seasonal UV changes exhibit significant fluctuations, particularly peaking during the winter months (January to April) with an extreme UV Index ranging from 11 to 16 and a burn time of just 10 minutes. The high-risk months are notably concentrated in the winter and early spring, where the UV Index remains extreme, suggesting that visitors and residents should take extra precautions by seeking shade and wearing protective clothing. As we transition into late spring and summer, the UV Index decreases to a very high and high level, allowing for slightly longer safe exposure times of 15 to 25 minutes. However, even during these months (May to August), it is crucial to maintain vigilance, especially in September and October, as UV levels rebound to extreme levels again. To stay safe, individuals are advised to consistently check the UV Index and employ sun protection strategies year-round, especially during peak UV times.
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 |
| Nova Friburgo | 16 | 15 | 13 | 11 | 8 | 6 | 7 | 9 | 12 | 13 | 14 | 16 |
| 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 |