Last updated: May 3, 2025
Staying informed about the UV Index in Sombrio, Brazil is crucial for everyone who wants to enjoy the sun safely. Understanding UV levels is vital for preventing sunburn and protecting your skin health, especially in a region with a Cfa climate, characterized by warm, humid summers and moderate UV exposure. With peak UV levels reaching 6 between 12:00 PM and 1:00 PM, even short outings without proper protection can lead to harmful effects. By keeping an eye on the UV Index, you can take proactive measures to safeguard yourself and ensure your time outdoors remains both enjoyable and harm-free.
Throughout the day, the UV Index escalates to its peak between 12:00 PM and 1:00 PM, reaching a high of 6—a clear indicator to stay protected from the sun's rays. Early morning hours see a gentle start, with a maximum 1 at 7:00 AM and 8:00 AM, gradually rising to 2 by 9:00 AM. As the sun climbs, so does the intensity, spiking to 5 at 11:00 AM and maintaining a steady 6 for the peak hours. Following this brief burst of intensity, the UV Index dwindles swiftly, dropping to 4 by 2:00 PM, then further decreasing to 3 at 3:00 PM, and tapering off to 1 by 4:00 PM. Finally, as daylight fades, the index plummets to 0 by 6:00 PM, marking the end of a vibrant, sunlit day. Remember to stay safe and protect your skin, especially during midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 4 | 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 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 |