Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Campinas, Brazil, where the warm Cfa climate can lead to significant sun exposure. With UV levels peaking at an 8 during midday, awareness of these indices is vital for preventing sunburn and protecting skin health. By recognizing the risks associated with high UV exposure, such as skin damage and long-term health issues, you can take proactive steps to enjoy the sun safely. In Campinas, the typical UV exposure varies throughout the day, highlighting the importance of informed sun safety practices to ensure a healthy and vibrant lifestyle.
The UV Index data paints a vivid picture of sun exposure throughout the day. In the early hours, from 7:00 AM to 9:00 AM, the UV Index remains low, peaking at only 1. However, as the sun climbs higher, from 10:00 AM to 12:00 PM, it surges to 8 at noon, marking the peak of solar intensity. The afternoon sees a slight decline, with the index dropping to 5 at 2:00 PM and further to 3 by 3:00 PM. As evening approaches, the UV levels plummet back to a safe 1 by 4:00 PM, and the sun's diminishing rays result in a 0 by 6:00 PM, signaling a welcome reprieve from UV exposure. Essentially, the peak intensity occurs during midday hours, highlighting the importance of seeking shade and wearing protection during these critical hours.
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 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 |
The UV Index exhibits significant seasonal fluctuations, with the highest levels consistently occurring in the winter months of January and February, where both register at 16, categorizing exposure as extreme and necessitating a mere 10 minutes of sun exposure before burning. Following closely, March through April also showcases extreme UV levels, before tapering slightly in May, where the index drops to 8 but remains in the very high range. June and July see mild reductions, landing at 6 and 7, respectively, representing high exposure risks with a burn time of 25 minutes. Nevertheless, as the season transitions back to fall, September and October return to extreme levels, particularly notable in September at 11 and October at 13, while November maintains a high index of 14. Visitors and residents should remain vigilant from January through April and again in September and October, as these are critical months for high UV exposure risks. It's advisable for everyone to adopt protective measures, including wearing sunscreen and protective clothing, during these high-risk periods to minimize adverse effects from UV exposure.
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 |
| Campinas | 16 | 16 | 13 | 11 | 8 | 6 | 7 | 9 | 11 | 13 | 14 | 16 |
| 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 |