Last updated: July 2, 2025
In Palmas, Brazil, understanding the UV Index is crucial for protecting your skin and overall health. During the day, UV levels can soar, reaching a peak of 6 between noon and 1 PM, which poses a significant risk for sunburn and long-term skin damage. With a Cfa climate, showcasing warm and sunny conditions, the potential for harmful UV exposure is heightened, making it essential for residents and visitors alike to stay informed. By monitoring the UV Index, you can make informed choices about sun protection, ensuring enjoyable outdoor activities while safeguarding your skin.
The UV Index throughout the day presents a dynamic interplay of sunlight, peaking at 12:00 PM and 1:00 PM with a robust 6. Early risers will enjoy the gentle warmth with a UV Index of 0 at 7:00 AM, slowly climbing to 1 by 8:00 AM. As the morning progresses, it reaches 3 at 10:00 AM and then escalates to its highest at noon. Afternoon hours see a gradual decline, dipping back to 5 at 2:00 PM before gently dropping to 3 by 3:00 PM. As the sun sets, the index retreats below 1 from 5:00 PM onward, concluding with a soothing 0 at 6:00 PM and remaining steady until dusk. Make sure to stay protected during the peak hours, especially when the sun's rays are at their strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | 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 experiences significant variations throughout the year, peaking during the winter and fall months. From January to April, the average UV Index remains at an extreme level of 15-13, requiring only 10 minutes of exposure before burning occurs. This pattern continues in September and October with a return to extreme levels, emphasizing that both November and December also pose a high risk. The transition to May through July sees a temporary decrease to high levels (7-6), allowing for slightly longer safe exposure times of 25 minutes. However, the UV exposure increases again in August to very high levels, necessitating a burn time of just 15 minutes. It is crucial for residents and visitors alike to take precautions during these high-risk months, particularly during the winter and fall when the UV Index remains consistently extreme. Apply broad-spectrum sunscreen, wear protective clothing, and seek shade to safeguard your skin year-round.
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 |
| Palmas | 15 | 15 | 13 | 11 | 7 | 6 | 6 | 8 | 11 | 14 | 15 | 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 |