Last updated: July 2, 2025
Understanding the UV Index in Franca, Brazil, is crucial for safeguarding your skin health and preventing sunburn. With a climate characterized by warm summers and a distinct wet and dry season, residents and visitors alike should be aware of the varying UV levels throughout the day. From a moderate rating of 3 in the morning to a peak of 8 during midday, the risk of harmful UV exposure increases significantly. By being informed about these levels, you can take proactive measures to protect yourself and enjoy the sunny days while minimizing long-term skin damage. Stay aware, stay safe!
At dawn, the UV Index remains low, peaking at 1 by 08:00. As the sun rises higher, a notable increase occurs, reaching 3 at 09:00 and escalating dramatically to a maximum of 8 from 12:00 to 13:00. This midday surge indicates a higher risk for sun exposure, making it essential to take precautions such as wearing sunscreen and protective clothing. The intensity then gradually declines, dropping to 4 by 15:00, and continuing its descent to 0 by 19:00, marking the end of the sun’s peak influence for the day. Stay mindful of these hourly fluctuations to enjoy the sun safely!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | 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 | 8 | very high | 15 min |
14:00 | 6 | high | 25 min |
15:00 | 4 | 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 fluctuates significantly, with January to April showcasing extreme levels (UV Index of 12-16) and a minimal burn time of just 10 minutes. May marks a transition to a very high exposure category (UV Index of 9) with increased burn time of 15 minutes, while June and July see a slight reduction (UV Index of 7-8) but remain high risk, with burn times of 25 and 15 minutes, respectively. As summer shifts into early autumn, August and September revert to extreme levels, prompting a return to quick burn times of 10 minutes. October and November continue to exhibit extreme UV levels, ultimately peaking again in December. Visitors and residents should exercise caution during the high-risk months, particularly from January through April and again in August through November, always using appropriate sun protection measures and seeking shade during peak hours.
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 |
Franca | 16 | 16 | 14 | 12 | 9 | 7 | 8 | 11 | 12 | 14 | 15 | 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 |