Last updated: June 2, 2025
Understanding the UV Index in Manhumirim, Brazil, is crucial for maintaining healthy skin in the face of the region's Cwa climate, characterized by seasonal variances that can intensify UV exposure. With peak UV levels reaching up to 7 at midday, awareness of these fluctuations is essential for sunburn prevention and long-term skin health. By keeping an eye on the UV Index, residents and visitors can make informed decisions about outdoor activities, ensuring they protect themselves from potential skin damage during those bright, sunny days typical of Manhumirim's climate.
As the day unfolds, the UV Index reaches its peak during the late morning and early afternoon hours. Starting at a mild 1 at 7 AM, the index gradually climbs to a more noticeable 7 by 11 AM, signaling a time when sun protection becomes essential. It holds steady at 7 until noon, then begins to decline, dipping to 4 by 2 PM, and further falling to 1 by 4 PM. By evening, the UV Index drops to 0, indicating a safe time to enjoy the outdoors without the worry of harmful UV exposure. Remember, during the peak hours from 10 AM to 2 PM, it's crucial to wear sunscreen and protective clothing to safeguard your skin!
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 | 7 | high | 25 min |
12:00 | 7 | high | 25 min |
13:00 | 6 | high | 25 min |
14:00 | 4 | moderate | 30 min |
15:00 | 2 | low | 45 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 |
During the year, UV levels fluctuate significantly, with the highest exposure occurring from January to April, where the UV Index reaches extreme levels (up to 17), indicating a burn time of only 10 minutes. High-risk months include January through April and September through November, where the index remains in the extreme category with minimal burn times. Visitors and residents should take precautions during these months by wearing protective clothing, applying sunscreen, and seeking shade, particularly during peak sunlight hours. As summer approaches, while UV levels drop to high and very high categories, vigilance is still necessary to prevent skin damage. Stay informed about daily UV levels and adjust your sun safety practices accordingly.
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 |
Manhumirim | 17 | 16 | 14 | 12 | 9 | 7 | 8 | 10 | 12 | 14 | 15 | 16 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |