Last updated: June 2, 2025
Understanding the UV Index is essential for residents and visitors of Montanhas, Brazil, where the tropical climate can lead to high sun exposure. With UV levels peaking at 11 around midday, awareness of these measurements is crucial for effective sunburn prevention and maintaining skin health. As you enjoy the sunny landscapes, remember that even just a few minutes of unprotected sun exposure during peak hours can cause harm. By keeping an eye on the UV Index, you can better navigate the outdoor adventures Montanhas has to offer while safeguarding your skin against the risks associated with elevated UV levels.
As the sun rises, the UV Index begins its ascent, reaching a moderate level of 2 by 7:00 AM. A steady increase quickly follows, peaking sharply at 11:00 AM and 12:00 PM with a high of 11, indicating a significant need for sun protection. The intensity of UV rays then begins to wane, dropping to 8 by 1:00 PM, and then gradually declining to a more manageable 5 at 2:00 PM. As the afternoon progresses, it continues to decrease, finishing the day at a minimal 0 by 6:00 PM. This data highlights the importance of taking precautions during the midday hours when UV exposure is at its highest. Remember to apply sunscreen and wear protective clothing to safeguard your skin!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 min |
13:00 | 8 | very high | 15 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 UV Index throughout the year displays extreme levels, particularly from January through November, with values consistently between 12 and 15, indicating a high risk of harm from unprotected sun exposure. Notably, the highest UV Index occurs in March at 15, closely followed by February and April at 14. Visitors and residents should take special care during these high-risk months and consistently throughout the year, ensuring they wear appropriate sun protection, including sunscreen, hats, and UV-protective clothing. With a burn time of only 10 minutes, it is crucial to limit sun exposure, especially during midday when UV radiation is at its peak.
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 |
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 |
Montanhas | 14 | 14 | 15 | 14 | 12 | 11 | 11 | 12 | 13 | 13 | 14 | 14 |