Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Natividade, Brazil, as it plays a significant role in maintaining skin health and preventing sunburn. With a tropical climate (Cwa) that offers plenty of sunshine, the UV levels can fluctuate throughout the day, reaching a peak of 9 between 11:00 and 12:00. Awareness of these fluctuations allows individuals to take necessary precautions, ensuring they enjoy the outdoors safely while minimizing the risks associated with high UV exposure. By keeping an eye on the UV Index, residents can protect their skin and promote overall well-being in this vibrant community.
The UV Index for the day shows a striking increase in intensity, peaking between 11:00 AM and 12:00 PM with a high of 9. Early morning hours are relatively mild, starting at 1 at 7:00 AM and gently rising to 2 by 8:00 AM. As the sun climbs higher, the index sharply escalates to 4 by 9:00 AM and reaches its pinnacle at 10:00 AM with 7. After its peak, the index begins to decline, dropping to 5 by 2:00 PM and further cooling off to 3 at 3:00 PM. By late afternoon, the values diminish significantly as dusk approaches, with readings at 1 by 4:00 PM and eventually 0 by 6:00 PM. This daily pattern highlights the importance of sun safety, especially during those peak hours when UV exposure is at its highest.
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 | 7 | high | 25 min |
11:00 | 9 | very high | 15 min |
12:00 | 9 | 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 |