Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Bastos, Brazil, where the sun’s intensity can pose significant risks to skin health. With a climate categorized as Aw, Bastos experiences high UV levels, especially during midday hours, making it essential to monitor these levels for effective sunburn prevention. By being aware of the UV Index, individuals can take proactive measures to protect themselves, reducing the risk of skin damage and other complications associated with excessive sun exposure. Keep an eye on the UV readings to enjoy Bastos's sunny days safely!
Throughout the day, the UV Index showcases a dynamic pattern of intensity. Starting at a gentle 1 by 07:00, the index gradually rises, reaching a moderate 2 by 09:00. As the sun climbs higher, a notable increase occurs, peaking at an elevated 7 from 12:00 to 13:00, marking the day's most intense UV exposure. The index then begins its descent, dipping to 4 by 15:00 and further down to 2 by 16:00. As evening approaches, the UV risk diminishes, with values dropping to 0 at 18:00 and remaining low for the rest of the evening. It's essential to stay protected during those peak midday hours when UV exposure can be at its strongest!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 2 | low | 45 min |
10:00 | 4 | moderate | 30 min |
11:00 | 6 | high | 25 min |
12:00 | 7 | high | 25 min |
13:00 | 7 | high | 25 min |
14:00 | 6 | 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 Index values exhibit significant variability, with the highest levels typically observed in the winter and late fall months. Notably, January, February, and March all carry an extreme exposure category with a UV Index of 15, while December peaks at 16, also within the extreme range. High-risk months include September and November, seeing extreme levels at 11 and 14, respectively. Visitors and residents are strongly advised to take precautions during these high-risk periods, particularly between January and March, ensuring appropriate sun protection measures such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the UV exposure is most intense.
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 |
Bastos | 15 | 15 | 13 | 11 | 8 | 7 | 7 | 10 | 11 | 14 | 14 | 16 |
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 |