Last updated: July 2, 2025
In Nova Xavantina, Brazil, being aware of the UV Index is crucial for protecting your skin from harmful ultraviolet rays. Understanding UV levels not only helps in preventing painful sunburns but also supports long-term skin health by minimizing the risk of skin cancer. With its tropical Aw climate, Nova Xavantina experiences significant UV exposure, especially during the peak hours of 10 AM to 2 PM when the index can soar as high as 9. Staying informed about UV levels can empower residents and visitors alike to enjoy the sun safely while safeguarding their skin.
The UV Index throughout the day showcases a distinctive pattern, peaking dramatically as the sun ascends. From 7:00 AM to 8:00 AM, the index starts at a low 1, gradually climbing to a moderate 3. By 9:00 AM, the intensity rises to 5, but the real surge occurs between 10:00 AM and 12:00 PM, where it reaches a maximum of 9, indicating a high risk for sun exposure. As afternoon approaches, the UV Index begins to taper off, dropping to 5 by 2:00 PM, and further declining to 3 at 3:00 PM. The day winds down with 1 at 4:00 PM and dwindling to 0 by 6:00 PM. To ensure safety during peak hours, it's crucial to take precautions from 10:00 AM to 12:00 PM, when UV radiation is at its strongest.
| 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 | 9 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 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 Index levels display significant fluctuations, with the highest values observed during the winter months of January to March, maintaining a remarkable 16, categorized as extreme, resulting in a burn time of just 10 minutes. Following this peak, April shows a slight decline to 13 but remains in the extreme category, while May and June moderate somewhat to very high levels of 10 and 9, respectively, allowing for a slightly longer burn time of 15 minutes. August and September see a resurgence in the UV Index, returning to extreme levels of 11 and 12. The months of October and November remain critical, also classified as extreme with an index of 15. Given the recurring high-risk months from January to March, as well as August and September, it is paramount for visitors and residents to take appropriate precautions by wearing sunscreen, protective clothing, and seeking shade, especially when outdoors during peak sunlight 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 |
| Nova Xavantina | 16 | 16 | 14 | 13 | 10 | 9 | 9 | 11 | 12 | 15 | 15 | 16 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |