Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Ruy Barbosa, Brazil, where the climate is characterized as Aw—hot and humid. Being aware of UV levels helps to protect against harmful effects such as sunburn and long-term skin damage. The UV Index in Ruy Barbosa peaks around midday, reaching 11—a level that signals extreme risk for unprotected skin. With intense sunlight typical of this region, it's essential to take proactive measures during high UV hours to safeguard your skin and health. Stay informed and enjoy the sun responsibly!
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 in this region remains notably high, particularly from January to April and again in October to December, where it reaches an extreme level of 15. During these months, the burn time is as brief as 10 minutes, posing a significant risk for sunburn and skin damage. In March and April, the index remains at 14 and 13, respectively, indicating a continued high risk. Although June and July see a slight dip to 9 and 10, the index remains categorized as very high, with a burn time of 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing protective clothing, applying sunscreen regularly, and seeking shade when necessary, especially during peak sunlight hours.
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 |
Ruy Barbosa | 15 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 15 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |