Last updated: July 2, 2025
In Paranhos, Brazil, staying informed about the UV Index is essential for protecting your skin from harmful ultraviolet radiation. Understanding UV levels helps prevent sunburn and promotes long-term skin health, especially in a region where the sun can be intense. With a Cfa climate, residents and visitors alike should be aware of the varying UV exposure risks throughout the day; for instance, peak values reach 7 between 11:00 AM and 12:00 PM. Being proactive about UV safety can make a significant difference in your overall well-being while enjoying the beautiful outdoor environment that Paranhos has to offer.
The UV Index data paints a clear picture of how exposure to ultraviolet rays varies throughout the day. Starting at a low level of 1 at 07:00, the index gradually climbs to peak at 7 from 11:00 to 12:00, indicating the times when sun protection is most crucial. As the afternoon progresses, the index dips to 6 at 13:00, then gently declines to 4 by 14:00. The evening hours see a significant drop, with values falling to 2 at 15:00 and retreating to 1 at 16:00. By nightfall, the UV Index drops to 0 from 18:00 onward, signalling a safe time for outdoor activities without the need for sun protection. Enjoy the sunshine, but be mindful of the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 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 |
Throughout the year, UV Index levels exhibit significant seasonal fluctuations, particularly in the winter and fall months. January, February, March, April, September, October, November, and December all experience extreme UV exposure, with indices of 11 to 15 and a minimal burn time of just 10 minutes. The high-risk months are particularly late fall and winter months, alongside early spring, when residents and visitors should be extra cautious. In contrast, May, June, July, and August show a decrease in risk, with UV indices ranging from 6 to 9, where the burn time slightly increases to 15-25 minutes. To minimize UV exposure, it is advisable for both residents and visitors to wear protective clothing, apply sunscreen generously, and seek shade during peak sunlight hours, especially from March to November when UV levels are at their highest.
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 |
| Paranhos | 15 | 15 | 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 |