Last updated: May 3, 2025
In Nova Friburgo, Brazil, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels helps in preventing sunburn and long-term skin damage, making it essential for residents and visitors alike. Nestled in a Cfa climate zone, Nova Friburgo experiences notable variations in UV exposure throughout the day, peaking at a UV Index of 8 between 11:00 AM and 12:00 PM. This significant level indicates that without proper protection, even brief outdoor activities can lead to harmful effects. Stay informed and enjoy the beautiful sunshine while keeping your skin safe!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s rays.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 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 |