Last updated: July 2, 2025
In Sao Lourenco da Mata, Brazil, awareness of the UV Index is essential for protecting your skin and overall health. Understanding UV levels can help you prevent sunburn and long-term skin damage, ensuring you enjoy the beautiful tropical climate safely. During peak hours, especially from 10 AM to 2 PM, the UV Index can rise dramatically, reaching a high of 11, making it crucial to take precautions. While the warm and sunny weather can be delightful, being informed about UV exposure risks allows residents and visitors to enjoy outdoor activities without compromising skin health. Protect yourself: knowledge is your best defense against harmful UV rays!
The UV Index fluctuated throughout the day, beginning at a mild 2 by 07:00 and gradually escalating to a peak of 11 at 11:00. This marked the day’s prime time for sun exposure, urging caution for those outdoors. As the afternoon progressed, the index began to decline, showing a 10 at 12:00, before gradually tapering off to 3 by 15:00, and dropping to 1 at both 16:00 and 17:00. By the evening, the sun's intensity faded completely, registering 0 by 18:00 and persisting through to 19:00. It was a day characterized by a significant midday sun, reminding everyone to take protective measures when the UV levels peaked.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 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 remains consistently high, ranging from 11 to 14, indicating an extreme exposure category and a burn time of just 10 minutes across all months. The months of January through March, as well as November and December, consistently show a UV Index of 14, posing significant risk for skin damage. April and September also present high levels of UV exposure at 14 and 13 respectively. As such, it is crucial for both visitors and residents to exercise caution during these high-risk months. Protective measures should include wearing broad-spectrum sunscreen, seeking shade during peak hours, and donning protective clothing to mitigate the risk of harmful skin exposure year-round.
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 |
| Sao Lourenco da Mata | 14 | 14 | 14 | 14 | 12 | 11 | 11 | 12 | 13 | 13 | 14 | 14 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |