Last updated: July 2, 2025
In Sideropolis, Brazil, awareness of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels is essential for preventing sunburn and reducing the risk of long-term skin damage, especially in a region characterized by a Cfa climate, which can bring prolonged periods of sunshine. During the day, UV exposure peaks notably from 10 AM to 2 PM, with index values reaching as high as 5, indicating a moderate to high risk of harm from unprotected sun exposure. Stay informed and proactive to enjoy the sunny days while safeguarding your skin!
The UV Index throughout the day showcases an engaging pattern of intensity. Starting from a gentle 1 at 07:00 and 08:00, it gradually climbs, hitting 2 at 09:00. By 10:00, the index reaches 3, signaling a moderate risk for sun exposure. The sun’s intensity peaks between 11:00 and 13:00, peaking at a strong 5, urging everyone to take necessary precautions. As the afternoon progresses, the index slightly dips to 4 at 14:00, before tapering down to 3 at 15:00. As the sun begins to set, the UV levels descend, hitting 1 by 16:00, and finally dropping to 0 by 18:00, offering a soothing end to the day. It’s a reminder to enjoy the sun wisely, especially during those 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 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 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, the UV Index fluctuates significantly, with January and February leading as the months with the highest risk, both rated at an extreme index of 15 and a quick burn time of just 10 minutes. March slightly decreases to a UV index of 12, still categorized as extreme, continuing the trend of high risk. As the seasons change to April, the UV index drops to 10 but remains in the very high zone with a burn time of 15 minutes. May sees a further decline with a high index of 7, which increases slightly in August but returns to very high in September. Visitors and residents should exercise caution particularly from January to March and again in October and November, where the UV index returns to extreme levels. Always use sunscreen, wear protective clothing, and limit exposure during peak hours to safeguard against skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sideropolis | 15 | 14 | 12 | 10 | 7 | 5 | 5 | 7 | 10 | 13 | 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 |