Last updated: July 2, 2025
Understanding the UV Index in Sao Miguel do Araguaia, Brazil, is essential for safeguarding your skin and overall health. With the region's warm Aw climate and high sun exposure, knowing the daily UV levels can help prevent sunburn and long-term skin damage. During peak hours, especially between 10 AM and 2 PM, UV levels can soar to 10, indicating a very high risk of harm from unprotected sun exposure. Awareness of these fluctuations allows residents and visitors to take proactive measures, ensuring fun in the sun while minimizing health risks. Stay informed and enjoy the beauty of Sao Miguel do Araguaia safely!
The UV Index for today presents a clear pattern of sun intensity, peaking sharply in the early afternoon. Starting off with a low index of 1 at 7 AM and remaining consistent at the same level until 9 AM, the sun's rays gradually intensify. By 10 AM, the index rises to 6, reaching a notable 8 at 11 AM, and soaring to a maximum of 10 between 12 PM and 1 PM—the critical hours for sun exposure. As the day progresses, the intensity begins to decline, dropping back to 8 by 2 PM, then tapering down to 5 by 3 PM. The late afternoon and evening bring a return to safer levels, with the index falling to 1 at 5 PM and fading to 0 by 7 PM. For those planning outdoor activities, it's essential to stay protected during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index in this region remains notably high, particularly from January to April and again in October to December, where it reaches an extreme level of 15. During these months, the burn time is as brief as 10 minutes, posing a significant risk for sunburn and skin damage. In March and April, the index remains at 14 and 13, respectively, indicating a continued high risk. Although June and July see a slight dip to 9 and 10, the index remains categorized as very high, with a burn time of 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing protective clothing, applying sunscreen regularly, and seeking shade when necessary, especially 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 |
| Sao Miguel do Araguaia | 15 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 15 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |