Last updated: July 2, 2025
In Minacu, Brazil, awareness of the UV Index is crucial for protecting your skin and overall health. With the region's tropical climate characterized by high sun exposure, understanding UV levels can help you prevent sunburn and reduce the long-term risks of skin ailments. During peak hours, particularly between 11:00 AM and 1:00 PM, UV Index values can soar to as high as 10, indicating a very high risk of harm from unprotected sun exposure. By staying informed about the UV Index, you can take the necessary precautions to enjoy the sun safely while safeguarding your skin's health.
As the sun rises, the UV Index begins its gradual climb, starting at a mere 1 at 7:00 AM. By 8:00 AM, it doubles to 2, hinting at the promise of a brighter day. The index reaches 4 at 9:00 AM, marking the start of a moderate risk for sun exposure. By 10:00 AM, it escalates to 6, prompting outdoor enthusiasts to take precautions. The zenith arrives at 12:00 PM and 1:00 PM, where the index peaks at an intense 10—a clear signal to seek shade and apply sunscreen! Although it dips to 8 at 2:00 PM, the threat remains, before gradually declining to 5 at 3:00 PM and then dropping further to 2 at 4:00 PM. As the day winds down, the UV Index falls to 1 by 5:00 PM and returns to 0 by 6:00 PM, echoing the day's safe closure. With a day full of varied UV exposure, it's crucial to stay sun-smart during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | 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 varies significantly, indicating a notable pattern in sun exposure risks. From January through April, the UV Index remains exceptionally high, peaking at 16 in January and December and consistently falling within the extreme exposure category with a burn time of just 10 minutes. The risk continues into August and September, where the index returns to similar extreme levels, notably at 13 in September. June and July see a slight reduction to a very high exposure category, with a burn time lengthening to 15 minutes but still demanding caution. May serves as a transitional month with an index of 11, indicating high risk but less severe than preceding months. As summer gives way to autumn and winter, the high-risk months for sun exposure remain predominantly in the winter through early spring and late summer into early fall. Visitors and residents should take proactive measures during these peak months, including wearing protective clothing, applying broad-spectrum sunscreen frequently, and seeking shade during peak sun hours to minimize the risk of sunburn and skin damage.
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 |
| Minacu | 16 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 16 |