Last updated: May 3, 2025
In Demerval Lobão, Brazil, understanding the UV Index is crucial for protecting yourself from harmful sun exposure. The UV levels here can soar to a peak of 13 in the midday sun, highlighting the importance of awareness to prevent sunburn and safeguard skin health. With a tropical climate that offers abundant sunshine year-round, residents and visitors alike need to be vigilant, especially during the high UV hours from 10 AM to 2 PM. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while minimizing your risk of skin damage and enjoying every sunny day safely!
The UV Index throughout the day showcases a dramatic rise and fall, peaking at 12 around 12:00 PM. The morning starts gently, with a maximum of 3 at 08:00 AM, but by 10:00 AM, it escalates to 10, indicating a significant increase in sun intensity. This reaches its zenith at 12:00 PM, where a UV Index of 13 emphasizes the need for sun protection. The intensity begins to taper off after this peak, dropping to 4 by 15:00 PM and further declining to 1 by 17:00 PM. As the evening approaches, the UV Index effectively returns to 0 after 18:00 PM, signaling the end of sun exposure risk for the day. Be mindful of these fluctuations and prioritize sun safety during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 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 data reveals extreme exposure levels throughout the year, with consistently high values of 14 to 16 from January to April, marking these months as critical for sun safety. March stands out as the month with the highest UV Index of 16, indicating increased risk for sunburn with only 10 minutes of unprotected exposure. Although UV levels slightly decrease during the summer months (June to August), they remain in the 11 to 13 range, still categorized as extreme. By November and December, UV levels return to 14, maintaining that high-risk status. Visitors and residents are strongly advised to protect themselves year-round by wearing sunscreen, sunglasses, and protective clothing, and to seek shade whenever possible, especially during peak sun 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 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |
| Demerval Lobao | 14 | 14 | 16 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 14 | 14 |