Last updated: July 2, 2025
Understanding the UV Index is essential for residents of Natividade, Brazil, where the tropical Cwa climate brings varied levels of sun exposure throughout the day. Being aware of the UV levels is crucial for protecting your skin from harmful effects, such as sunburn and long-term skin health issues. In Natividade, peak UV readings reach a striking 8 around midday, highlighting the necessity of sun safety measures. By staying informed about the UV Index, you can enjoy the beautiful sun while ensuring your skin remains healthy and protected!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s rays.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 4 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 8 | very high | 15 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 |
The UV Index shows significant seasonal variations, with highest levels typically occurring from January to April and again in November to December, where values reach an extreme category, requiring only 10 minutes of exposure for sunburn. February and March maintain a UV Index of 16, making these high-risk months for sunburn, alongside January and December. As summer approaches, UV levels moderate slightly but remain very high in July and August (UV Index 8 and 10, respectively), indicating a burn time of 15 minutes. Visitors and residents are strongly advised to take precautions such as wearing sunscreen, hats, and protective clothing, particularly during these peak months to reduce the risk of skin damage.
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 |
Natividade | 16 | 16 | 14 | 12 | 9 | 7 | 8 | 10 | 12 | 14 | 15 | 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 |