Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents and visitors of Sao Pedro do Piaui, Brazil, where the climate can amplify the risks associated with sun exposure. As this vibrant town experiences high UV levels, particularly between 10 AM and 2 PM, being aware of these fluctuations is vital for preventing sunburn and protecting your skin health. With maximum UV indices reaching up to 11 during peak hours, the importance of understanding UV levels cannot be overstated. By staying informed, you can enjoy the sunny outdoor lifestyle that Sao Pedro do Piaui offers while safeguarding your well-being.
The UV Index today peaked dramatically in the late morning, starting from a low of 1 at 07:00 and climbing to an impressive 11 by 12:00. This intense exposure reached its zenith at 11:00, where precautions were essential as the Index hit 10. As the afternoon progressed, the UV levels began to gradually decline, dropping to 4 by 15:00 and further down to a modest 2 by 16:00. By the evening, the sun had softened, bringing the UV Index back to 1 at 17:00, and ultimately fading to 0 by 18:00, when the day's light had nearly vanished. Make sure to stay protected during peak hours to enjoy the sunshine safely!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 5 | moderate | 30 min |
10:00 | 8 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 10 | 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 |
The UV Index remains extremely high throughout the year, with consistent readings around 14-15 from January to April, and slightly decreasing to 11-13 during the summer and fall months. The high-risk months for UV exposure are from January to April, where the burn time is as little as 10 minutes. Visitors and residents are strongly advised to take precautions, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak hours, especially in these critical months. Remain vigilant and prioritize skin protection year-round to minimize potential harm from the sun’s rays.
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 |
Sao Pedro do Piaui | 15 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 14 | 14 |