Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Mogi Guaçu, Brazil, as it provides vital information for sun safety and skin health. With peak UV levels reaching 8 around noon, being informed helps prevent sunburn and long-term skin damage. The Cfa climate of Mogi Guaçu offers plenty of sunshine, but this also means increased exposure to harmful UV rays. By staying aware of daily UV levels, you can enjoy the beautiful weather while protecting your skin from its potential risks.
As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it gently climbs to 2, but it's not until 09:00 that it hits 3, signaling a clearer sky. The index takes a notable leap at 10:00, reaching a brisk 5, and peaks at 12:00 with a striking 8—the ideal time to seek shade or apply sunscreen! As the afternoon wears on, the index falls back to 7 at 13:00, and then gradually drops to 5 by 14:00. As the sun starts to set, there's a further decline, leaving the evening with a relaxed 1 at 16:00 and tapering off to 0 by 19:00. This detailed hour-by-hour progression highlights the importance of sun safety during the peak hours of the day!
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 | 8 | very high | 15 min |
13:00 | 7 | high | 25 min |
14:00 | 5 | moderate | 30 min |
15:00 | 3 | moderate | 30 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 |
Throughout the year, UV Index levels exhibit significant seasonal variation, with the highest risks occurring from January to April and again in September to November, when the index remains in the extreme category. January, February, and December consistently peak at 16, indicating a 10-minute burn time for unprotected skin. In contrast, May to July shows a decrease to a maximum of 8, categorized as very high to high, with slightly longer burn times of up to 25 minutes. As UV levels climb again in August and October, it remains essential for both visitors and residents to take precautions. Always ensure proper sun protection by wearing sunscreen, hats, and protective clothing, particularly during these high-risk months to avoid skin damage. Remember, even on cloudy days, UV radiation can be harmful, so stay vigilant 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 |
Mogi Guacu | 16 | 16 | 13 | 11 | 8 | 6 | 7 | 10 | 11 | 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 |