Last updated: June 2, 2025
In Goianesia, Brazil, understanding the UV Index is crucial for maintaining skin health and preventing sunburn, especially in a region known for its Aw climate characterized by warm temperatures and high sun exposure. As you navigate the daily UV levels, peaking at a staggering 9 around noon, it's important to protect your skin from harmful effects. With the sun’s intensity fluctuating throughout the day—ranging from a low of 1 early in the morning to a high of 9—being aware of these levels can help you enjoy the outdoors safely while avoiding long-term damage. Make UV Index awareness a part of your daily routine and embrace the sun responsibly!
The UV Index for the day starts off low, with a maximum of 1 at 07:00 and 08:00, providing a gentle introduction to sunlight. As the morning progresses, it climbs gradually, peaking at 9 around 12:00, marking the sun's fierce midday intensity. The index remains high at 8 from 11:00 to 13:00, urging outdoor enthusiasts to seek shade and apply sunscreen. However, by the afternoon, the UV Index begins to taper off, declining to 4 at 15:00 and dropping further to 1 by 17:00, before finally hitting 0 in the evening. This fluctuation highlights the importance of being sun-smart, especially during those critical midday hours when UV exposure can be most damaging.
| 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 | 8 | very high | 15 min |
| 14:00 | 6 | 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 |
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 |
| Goianesia | 16 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 16 |