Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Mundo Novo, Brazil, where the tropical climate can lead to elevated sun exposure risks. With the UV levels soaring as high as 10 around midday, being aware of these fluctuations helps in preventing sunburn and promoting overall skin health. During the sunniest hours, when the index reaches its peak, it's essential to take appropriate precautions to safeguard your skin. By staying informed about UV levels, you can enjoy the beautiful sun-drenched days of Mundo Novo while minimizing potential harm from harmful UV rays.
The UV Index throughout the day showcases a notable peak from 11:00 AM to 12:00 PM, where it reaches a high of 10, indicating very high levels of UV radiation and a strong need for sun protection. This intense sunlight starts to build up at 9:00 AM with a reading of 5, escalating to 8 by 10:00 AM. As the afternoon unfolds, the index gradually declines, dropping to 6 at 2:00 PM, followed by a significant decrease back to 3 by 3:00 PM. By the evening, the UV levels return to safe numbers, tapering off to 1 at 4:00 PM and 0 by 6:00 PM, prompting a welcome end to the day’s sun exposure. Always remember to take precautions during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 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 Index levels in this region fluctuate significantly, with the highest values occurring from January to March and again in November and December, where the index reaches 15 and falls within the extreme exposure category, giving a burn time of just 10 minutes. The months of April, August, September, and October also present high risks, showing UV levels between 13 and 14, warranting similar caution. Conversely, June and July see a slight decrease to a UV Index of 10, categorized as very high, offering a marginally longer burn time of 15 minutes. Visitors and residents are strongly advised to take precautionary measures during these high-risk months—wearing protective clothing, using sunscreen, and seeking shade, especially during midday hours, to minimize the risk of sunburn and long-term 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 |
| 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 |
| Mundo Novo | 15 | 14 | 15 | 14 | 11 | 10 | 10 | 12 | 13 | 15 | 15 | 15 |