Last updated: June 2, 2025
Awareness of the UV Index in Sombrio, Brazil is essential for ensuring skin health and preventing sunburns, especially in this Cfa climate zone, where UV exposure can be significant. Understanding the varying levels of UV radiation throughout the day helps residents and visitors alike protect themselves during peak hours, notably when the UV index reaches its highest at 12:00 PM and 1:00 PM. With typical exposure risks escalating between 10:00 AM and 2:00 PM, being informed empowers everyone to enjoy the beautiful Brazilian sun safely while minimizing potential harm.
At dawn, the UV Index begins at a gentle 0 by 07:00, indicating minimal exposure risk. As the sun rises higher, the index steadily climbs, reaching 1 at 08:00 and peaking at 5 between 12:00 and 13:00, when the sun’s rays are at their most intense. During these peak hours, it’s wise to don your sunscreen and protective gear. Following this zenith, the index gracefully descends, dropping to 4 at 14:00 and tapering off to 2 by 15:00. As the afternoon fades to evening, the UV levels reduce significantly, returning to a safe 0 by 18:00. This hourly UV pattern underscores the importance of sun safety during peak daylight hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 0 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 2 | low | 45 min |
10:00 | 3 | moderate | 30 min |
11:00 | 4 | moderate | 30 min |
12:00 | 5 | moderate | 30 min |
13:00 | 5 | moderate | 30 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 |
Throughout the year, UV exposure varies significantly, with the highest levels occurring during the winter and early spring months. Notably, January, February, March, October, November, and December all present an extreme UV Index, often peaking at 15, which translates to a rapid burn time of just 10 minutes. April sees a slight decrease to a 10 on the UV Index, categorized as very high, allowing for a slightly longer burn time of 15 minutes. As we transition to May and August, the UV Index drops to 6 and 7, categorized as high, with a burn time of 25 minutes. The summer months of June and July show a moderate UV Index of 5, enabling a safer burn time of 30 minutes. It is crucial for visitors and residents to remain vigilant during the high-risk months (January to March and October to November) by employing adequate sun protection measures—including wearing sunscreen, protective clothing, and avoiding direct sunlight during peak hours—to minimize the risk of harmful effects from UV exposure.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Sombrio | 15 | 14 | 12 | 10 | 6 | 5 | 5 | 7 | 10 | 12 | 14 | 15 |
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 |