Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Araguaiana, Brazil, where the tropical climate can lead to high ultraviolet radiation levels, particularly during midday hours. With peak UV ratings reaching up to 10, awareness of UV exposure is essential for protecting your skin from harmful effects such as sunburn and long-term health issues. By grasping the significance of UV levels, you can make informed decisions about sun safety, particularly in the warmer months when the sun's rays are most intense. Keep an eye on the UV Index to enjoy the sunny outdoors while safeguarding your skin in this vibrant region!
The UV Index data reveals a clear pattern of increasing sun intensity throughout the day. Starting at a mild value of 1 at 07:00 and 08:00, the UV levels swiftly climb to moderate levels of 3 by 09:00. By 10:00, the intensity escalates significantly to 6, reaching its peak at 12:00 and 13:00 with a formidable 10. This indicates a high risk of harm from unprotected sun exposure during midday hours. As the afternoon progresses, the UV Index gradually declines, dropping to 8 at 14:00, then to 5 by 15:00, and falls sharply to a serene 1 by 17:00. The evening brings relief with a 0 reading from 18:00 onward, allowing for a pleasant end to a sun-soaked day. Remember to stay protected during the peak hours to enjoy the outdoors safely!
| 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 | 9 | 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 | 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 shows significant seasonal variation, with extreme levels persisting from January to April and returning in August to November. High-risk months include January through April and August through November, where the UV Index peaks at 16 in February and December, indicating a very short burn time of just 10 minutes. Residents and visitors should prioritize sun protection during these periods, wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak UV hours. In the remaining summer months of May to July, the UV Index remains very high, inviting caution, especially with a burn time of about 15 minutes. It's essential to stay informed and take appropriate measures to safeguard against harmful UV exposure throughout the year.
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 |
| Araguaiana | 15 | 16 | 14 | 12 | 10 | 9 | 9 | 11 | 12 | 15 | 15 | 16 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |