Last updated: August 1, 2025
In Macatuba, Brazil, being aware of the UV Index is crucial for safeguarding your skin against harmful sun exposure. Understanding UV levels is essential not only for preventing sunburn but also for promoting long-term skin health. Macatuba’s Cfa climate, characterized by warm summers and mild winters, often leads to significant UV exposure, particularly during midday hours when the index peaks at 7, indicating a high risk of harm. By staying informed about UV levels, you can enjoy the beautiful outdoors while protecting yourself from potential damage.
At dawn, the UV Index starts off low, peaking at 1 by 08:00. As the day progresses, it climbs steadily, reaching 5 by 10:00 and hitting a maximum of 7 between 12:00 and 13:00—a time when sun protection is paramount. After this sizzling peak, the index dips gradually, falling to 3 by 15:00, and then to 2 at 16:00. As the sun sets, the UV exposure diminishes, dropping to 0 by 18:00, indicating a safe time for evening activities without the risk of harmful UV rays. Remember to take precautions during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 4 | 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 | 9 | very high | 15 min |
14:00 | 7 | high | 25 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, the UV Index exhibits significant seasonal variations, with January, February, March, April, September, October, November, and December classified as high-risk months due to their extreme exposure categories and a rapid burn time of only 10 minutes. The UV Index peaks in February at 16, indicating the strongest risk, while May and August present very high exposure conditions. As the summer months approach, the risk lessens slightly, with June and July showing high levels, allowing for a more generous 25-minute burn time. Visitors and residents are advised to take precautions during high and extreme UV Index months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade to minimize the risk of sunburn and long-term skin damage.
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 |
Macatuba | 15 | 16 | 12 | 11 | 8 | 6 | 7 | 10 | 12 | 13 | 14 | 16 |
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 |