Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Montanha, Brazil, where the climate is characterized by its tropical warmth. With the UV levels peaking between 10:00 AM and 12:00 PM at 8, it's essential to stay informed about the risks of sunburn and long-term skin damage, especially during these hours. As exposure to ultraviolet rays can significantly impact skin health, being aware of the UV Index can help you take necessary precautions. Whether you're enjoying the beautiful outdoors or engaging in daily activities, monitoring UV levels in Montanha allows you to protect your skin and enjoy the stunning Brazilian sun responsibly.
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 |
The seasonal UV changes reveal a consistent trend of extreme UV exposure from January through April, with indices peaking at 15 and a burn time of just 10 minutes. Following this, the UV Index decreases slightly in May and June, registering at 9 and 8 respectively, while still maintaining a very high exposure category with a burn time of 15 minutes. From August onwards, UV levels shift back to extreme values, reaching 11 in August and 12 in September and October, before returning to extremes through November and December. The high-risk months for sun exposure are therefore January to April and August to November, with a particular emphasis on the beginning and end of the year. Visitors and residents are strongly advised to take precautionary measures during these months, such as wearing protective clothing, applying sunscreen frequently, and limiting sun exposure, especially during peak hours, to mitigate the risk of UV-related harm.
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 |
Montanha | 15 | 15 | 14 | 12 | 9 | 8 | 8 | 11 | 12 | 14 | 15 | 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 |