Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Cachoeirinha, Brazil, where the sun can be both a source of warmth and a potential hazard for skin health. With UV levels peaking at 11 around midday, awareness of these readings becomes essential for effective sunburn prevention and long-term skin protection. Given Cachoeirinha's climate, characterized by tropical conditions and ample sunshine, it's vital to stay informed about daily UV exposure risks to enjoy the outdoors safely while safeguarding your skin. Stay sun-smart and make the most of your time under the Brazilian sun!
As the sun rises, the UV Index climbs steadily, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it reaches 3, marking the beginning of increased sun exposure. The day continues to heat up, with the index peaking at a remarkable 11 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. As the afternoon sets in, it gradually declines, dropping to 6 by 2:00 PM and subsequently to 3 by 3:00 PM. As the sun begins to descend, the index returns to a safer 1 by 4:00 PM and tapers off to 0 after 6:00 PM. This hourly trend underscores the importance of sun protection during the midday hours when the UV exposure is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 min |
13:00 | 9 | very high | 15 min |
14:00 | 6 | high | 25 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, the UV Index remains alarmingly high, with extreme levels recorded from January to April, consistently at 15, indicating a burn time of just 10 minutes. This pattern of high UV exposure continues into November and December, where the Index also reaches 15. May and August see a slight drop to 12, while June and July maintain an Index of 11. Though still categorized as extreme, September and October present marginally lower indexes of 14. Given these conditions, it is crucial for both visitors and residents to take precautions throughout the year. Sunscreen with high SPF, protective clothing, and minimizing sun exposure during peak hours are essential measures to avoid serious skin damage. Stay informed and protect your skin!
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 |
Cachoeirinha | 15 | 15 | 15 | 15 | 12 | 11 | 11 | 12 | 14 | 14 | 15 | 15 |