Last updated: May 3, 2025
Understanding the UV Index is vital for residents of Silva Jardim, Brazil, where tropical climate can lead to higher sun exposure. Awareness of daily UV levels not only aids in preventing sunburn but also plays a crucial role in protecting skin health over time. With UV Index readings peaking at 8 during midday, it’s essential to take precautions against harmful rays, especially between the hours of 10 and 14. By staying informed, you can enjoy the warmth of Silva Jardim while safeguarding your skin from potential risks associated with high UV exposure.
The UV Index throughout the day reveals a fascinating curve of sun exposure. Starting early, at 7:00 AM, it registers a low of 1, gradually climbing to its peak of 8 around noon. This notable surge underscores the importance of sun protection, especially from 11:00 AM to 1:00 PM, when the index reaches 7 and 8, respectively. As the afternoon progresses, the UV Index begins to decline, dipping to 4 by 2:00 PM and further down to 1 by 5:00 PM. By the time the sun sets, the UV Index drops to 0, indicating a safe window to enjoy the cooler evening hours without the risk of harmful sun exposure. Remember, during the peak times, sunscreen and protective clothing are vital for your safety!
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 2 | low | 45 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 |
The UV Index exhibits significant seasonal variations, peaking during the winter months with extreme levels, especially from January to April, where values range from 13 to 16 and the burn time is notably short at 10 minutes. This trend continues into September and October, with similarly high indices warranting caution. As the year progresses, May to August sees a moderate decline in UV levels, categorized as very high to high, allowing slightly longer exposure times of up to 25 minutes in June and July. High-risk months include January, February, March, April, September, October, and November, when the UV Index remains in the extreme category, necessitating strong sun protection measures. Visitors and residents are advised to wear protective clothing, use broad-spectrum sunscreen, and limit sun exposure during peak hours, particularly in higher risk months to ensure safety and skin health.
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 |
| Silva Jardim | 16 | 14 | 13 | 11 | 8 | 6 | 7 | 9 | 11 | 13 | 14 | 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 |