Last updated: June 2, 2025
In Marataizes, Brazil, staying informed about the UV Index is essential for protecting your skin and maintaining long-term health. With its tropical climate, this coastal town experiences varying levels of UV exposure throughout the day, peaking in the late morning and early afternoon. Understanding the UV levels—especially the heightened risk of sunburn when the index reaches 7 around 11 AM and 12 PM—is crucial for locals and visitors alike. By being aware of these values, you can embrace the outdoors safely while minimizing the risk of skin damage, ensuring your time in the sun is both enjoyable and responsible.
The UV Index data paints a clear picture of how exposure to ultraviolet rays varies throughout the day. Starting at a low level of 1 at 07:00, the index gradually climbs to peak at 7 from 11:00 to 12:00, indicating the times when sun protection is most crucial. As the afternoon progresses, the index dips to 6 at 13:00, then gently declines to 4 by 14:00. The evening hours see a significant drop, with values falling to 2 at 15:00 and retreating to 1 at 16:00. By nightfall, the UV Index drops to 0 from 18:00 onward, signalling a safe time for outdoor activities without the need for sun protection. Enjoy the sunshine, but be mindful of the peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 5 | moderate | 30 min |
11:00 | 7 | high | 25 min |
12:00 | 7 | high | 25 min |
13:00 | 6 | high | 25 min |
14:00 | 4 | moderate | 30 min |
15:00 | 2 | low | 45 min |
16:00 | 1 | 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 seasonal fluctuations, peaking from January through April, where it reaches levels classified as extreme (UV Index 16 to 11) with a burn time of just 10 minutes. The months of September to December also show extreme conditions, particularly in October and November, both with a UV Index of 14. Conversely, during the summer months of May to August, the UV Index drops to very high (UV Index 8 to 10), allowing for slightly longer burn times of 15 to 25 minutes. Visitors and residents should remain vigilant during high-risk periods, especially from January to April and September to November, and take necessary precautions such as wearing sunscreen, protective clothing, and seeking shade to minimize the risk of UV exposure.
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 |
Marataizes | 16 | 15 | 13 | 11 | 8 | 7 | 8 | 10 | 12 | 14 | 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 |