Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Porangatu, Brazil, where the tropical climate can lead to significant sun exposure. With UV levels reaching their peak during midday, awareness is essential for preventing sunburn and maintaining long-term skin health. In a region characterized by its warm temperatures and ample sunshine, recognizing when UV exposure is heightened can help you take smarter sun safety measures. Keep an eye on the UV Index to enjoy the sun safely—your skin will thank you!
As the sun rises, the UV Index starts off low at a comfortable 1 from 7:00 AM to 8:00 AM. By 9:00 AM, it jumps to 3, signaling a gradual increase in sun exposure. The intensity peaks around 12:00 PM, reaching an impressive 9, making midday the most critical time for sun safety. As the afternoon unfolds, the index slowly declines; it drops to 7 by 2:00 PM, then further decreases to 4 at 3:00 PM. The later hours offer a gentle reprieve, with values falling to 1 by 5:00 PM and ultimately 0 by 6:00 PM. Remember, during those peak hours, it’s essential to protect your skin!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 9 | very high | 15 min |
13:00 | 9 | very high | 15 min |
14:00 | 7 | high | 25 min |
15:00 | 4 | moderate | 30 min |
16:00 | 2 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, UV levels exhibit significant seasonal changes, with extreme UV Index values dominating from January to April (UV Index 16 to 13), and again from August to November (UV Index 12 to 15). These months, particularly January to April and August, pose the highest risk, with a burn time of just 10 minutes. In contrast, June and July see a slight dip to a very high exposure category but still require caution, allowing a burn time of 15 minutes. Visitors and residents are advised to take proactive sun protection measures during these high-risk months—wearing sunscreen, protective clothing, and seeking shade whenever possible to mitigate harmful UV exposure.
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 |
Porangatu | 16 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 15 |