Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Itapecerica, Brazil, where the warm Cwa climate can expose you to significant UV radiation, especially during the midday hours. By being aware of UV levels, you can effectively prevent sunburn and protect your skin health, avoiding long-term damage from excessive sun exposure. With peak UV Index values reaching 7 between 11:00 AM and 1:00 PM, it's important to take necessary precautions to stay safe. Whether you're enjoying outdoor activities or simply soaking up the sun, understanding the local UV Index is key to keeping your skin healthy and vibrant.
As the sun rises, the UV Index remains low at 1 from 07:00 to 08:00, offering a gentle start to the day. However, as the hours progress, the intensity increases, reaching 3 by 09:00 and peaking at 7 between 11:00 and 13:00. This midday surge signifies the sun's powerful rays, urging everyone to take precautions for skin protection. As the afternoon wanes, the UV Index begins to decline, dropping to 5 at 14:00, and further decreasing to 3 by 15:00. The evening brings relief, with the index falling to 1 by 16:00 and 0 from 18:00 onward. Embrace the early hours for outdoor activities, but stay vigilant during lunchtime when the sun is at its strongest!
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 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, UV exposure varies significantly, with January through April showing consistently high levels, peaking in January with a UV Index of 17 and an extreme exposure category that allows for a burn time of just 10 minutes. The months from May to July present a noticeable decrease in UV levels, with May's UV Index dropping to 9 (very high) and increasing again in July to 8 (very high). However, August sees a resurgence, returning to an extreme UV Index of 11. The trend continues through September to November, where UV levels remain high, with an Index reaching 15 in November. Notably, December ends the year at a 16 UV Index, maintaining extreme caution for sun exposure. Visitors and residents are strongly advised to protect their skin from the sun, especially during the high-risk months of January, February, March, April, August, September, October, November, and December, ensuring proper sunscreen application and limiting exposure during peak 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 |
| Itapecerica | 17 | 16 | 14 | 12 | 9 | 7 | 8 | 11 | 13 | 14 | 15 | 16 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |