Last updated: June 2, 2025
In Cassilandia, Brazil, understanding the UV Index is crucial for protecting your skin and overall health. As a region characterized by a tropical climate, Cassilandia experiences varying levels of ultraviolet radiation throughout the day, peaking with an index of 8 around noon—a level that can lead to sunburn in as little as 15 minutes without protection. Being aware of UV levels is not just about avoiding sunburn; it plays a vital role in long-term skin health and preventing skin-related issues. With this information at your fingertips, you can better plan your outdoor activities and take appropriate sun safety measures to enjoy the beautiful Brazilian sun while keeping your skin safe.
The UV Index today presents a dynamic pattern that peaks around midday. Starting from a gentle 1 at 7:00 AM, it gradually rises, reaching 2 by 9:00 AM. As the sun climbs higher, the intensity skyrockets to 8 at noon, signaling a strong need for sun protection. For the next hour, the index remains high at 7, before starting a gradual decline to 6 by 2:00 PM. The afternoon brings a decrease in UV radiation, dipping to 4 at 3:00 PM, and further down to 1 by 5:00 PM. Finally, after a full day of fluctuating UV exposure, the index drops to 0 by 6:00 PM, marking the end of significant sunlight. Overall, the day calls for caution during peak hours while enjoying time outdoors!
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 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 |
The UV Index exhibits significant seasonal variation, with extremely high levels persisting from January through April, where the index remains between 14 and 16, resulting in a burn time of just 10 minutes. The high-risk months for UV exposure include January, February, March, and April, as well as October and November, all classified under the extreme exposure category. From May to July, the UV Index remains “very high” with values around 8 to 9, allowing for slightly longer burn times of 15 minutes. Visitors and residents are advised to exercise extreme caution during these months, particularly by wearing protective clothing, applying sunscreen regularly, and limiting sun exposure during peak hours to mitigate skin damage from the intense UV radiation.
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 |
| Cassilandia | 16 | 16 | 14 | 12 | 9 | 8 | 9 | 11 | 12 | 15 | 15 | 16 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |