Last updated: May 3, 2025
Understanding the UV Index in Palmas, Brazil is crucial for everyone who enjoys the vibrant sunshine this tropical city offers. With the sun's intensity peaking at midday and a climate characterized by warm temperatures year-round, being aware of UV levels is essential for preventing sunburn and promoting long-term skin health. Notably, during peak hours, the UV Index can reach levels as high as 12, presenting significant risks to those who venture outdoors unprotected. Knowledge of daily UV exposure can help you make informed decisions about sun safety and enjoy the beautiful outdoor lifestyle Palmas has to offer!
The UV Index for the day starts off low, peaking at 1 by 07:00 and gradually rising through the morning hours. By 09:00, it hits 5, but the real surge occurs around 10:00, where it jumps to 8 and reaches its maximum of 12 at 12:00. The intensity wanes slightly in the early afternoon, dipping to 11 at 13:00 and then 8 at 14:00. As the day progresses, the index decreases to 5 by 15:00, and continues its decline to 1 by 17:00. By evening, the UV Index settles at 0, signaling a safe time to enjoy the outdoors without the worry of ultraviolet exposure.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 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 |
Throughout the year, UV Index levels in the region exhibit significant fluctuations, with January through April experiencing extreme exposure categories (UV Index 16-14) and a consistently short burn time of just 10 minutes. As we transition into late spring and early summer (May to July), the UV Index drops slightly, with a peak of 12 in August while still categorizing as extreme and requiring similar caution. Notably, June and July showcase a lower risk (UV Index 10, very high) with a burn time of 15 minutes. In contrast, the late fall and early winter months (September to December) revert back to an extreme exposure classification, with November and December reflecting a UV Index of 15. To protect yourself during high-risk months, especially from January to April and again in late summer and winter, it is crucial for visitors and residents to take proactive measures: apply broad-spectrum sunscreen, wear protective clothing, and limit sun exposure during peak 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 |
| Palmas | 16 | 15 | 15 | 14 | 12 | 10 | 10 | 12 | 13 | 14 | 15 | 15 |