Last updated: July 2, 2025
In Silvania, Brazil, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. High UV levels, particularly from late morning to early afternoon when the index peaks at 9, can pose significant risks, making it essential for residents and visitors to be aware of their UV exposure. The city’s Aw climate brings sunny days that often lead to increased UV radiation; thus, staying informed about these daily fluctuations can help you enjoy the sun safely while protecting your skin. Remember, being proactive about UV awareness not only enhances your outdoor experience but also serves as a vital step towards long-term skin health.
As the sun rises, the UV Index starts off low at a comfortable 1 from 7:00 AM to 8:00 AM. By 9:00 AM, it jumps to 3, signaling a gradual increase in sun exposure. The intensity peaks around 12:00 PM, reaching an impressive 9, making midday the most critical time for sun safety. As the afternoon unfolds, the index slowly declines; it drops to 7 by 2:00 PM, then further decreases to 4 at 3:00 PM. The later hours offer a gentle reprieve, with values falling to 1 by 5:00 PM and ultimately 0 by 6:00 PM. Remember, during those peak hours, it’s essential to protect your skin!
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 | 6 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 9 | very high | 15 min |
13:00 | 9 | very high | 15 min |
14:00 | 7 | 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 |
The UV Index experiences significant fluctuations throughout the year, with extreme levels prevailing from January to April and again in October to December. High-risk months notably include January, February, and November, each reaching a peak UV Index of 16, while December hits 17. Visitors and residents should take extra precautions during these periods, as the burn time is a mere 10 minutes at these extremes. In contrast, May through July sees a slight decrease, with a very high UV Index of 10-9, allowing for a burn time of 15 minutes. However, caution is still advised, particularly in August and September when the index rises back to 12. It's essential for everyone to protect their skin by using sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours, especially during these high-risk months.
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 |
Silvania | 16 | 16 | 14 | 13 | 10 | 9 | 9 | 12 | 12 | 15 | 16 | 17 |