Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Maracana, Brazil, where sunny days are abundant and UV exposure can be high. As an important measure of the sun's ultraviolet radiation, the UV Index helps you gauge the risk of sunburn and long-term skin health, ensuring you take the necessary precautions. With Maracana's tropical climate delivering high UV levels, particularly between 10 AM and 2 PM, being informed about these risks can significantly reduce the chance of skin damage. From peak readings of 12 at noon to a more manageable 2 by morning, being proactive about sun protection is essential for enjoying the vibrant outdoor lifestyle this beautiful region has to offer.
The UV Index throughout the day showcased a dramatic increase in intensity. Early in the morning, at 07:00, it was a mere 1, signifying low exposure risk. However, as the sun climbed higher, the index surged to 12 by 12:00, reaching its peak intensity. This period, from 11:00 to 13:00, urged sun safety measures as values hovered between 11 and 12. Following this peak, the index began its descent, dropping to 5 by 15:00 and tapering further to 1 by 17:00. By sunset, the UV Index had plummeted to 0, marking the end of a day filled with high sun exposure potential. Keep in mind these fluctuations as you plan your outdoor activities!
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 | 11 | extreme | 10 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 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
The annual UV Index exhibits extreme levels from January to May, peaking at a UV Index of 16 during both March and April, making these months particularly high-risk for sunburn with a burn time of just 10 minutes. Although there is a slight decrease in June and July, the UV Index remains significant, hovering around 12 to 13 through the late summer and into the fall. As such, visitors and residents are advised to take proactive precautions during these high-risk months, including wearing broad-spectrum sunscreen, protective clothing, and seeking shade, especially during peak sun hours. Awareness of these seasonal UV changes is crucial for outdoor safety 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 |
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 |
Maracana | 14 | 15 | 16 | 16 | 14 | 12 | 12 | 13 | 13 | 13 | 13 | 13 |