Last updated: July 2, 2025
In Bandeiras, Portugal, being aware of the UV Index is crucial for protecting your skin and overall health. With maximum UV levels peaking at 10 during the midday hours, understanding the importance of UV exposure can help prevent sunburn and long-term skin damage. Bandeiras, characterized by a temperate climate, typically experiences fluctuating UV levels throughout the day, making it essential for residents and visitors alike to stay informed. By keeping an eye on the UV Index, you can enjoy the sun safely while maintaining your skin's health and well-being.
As the sun rises, the UV Index begins its climb, starting at just 1 at 07:00 and 08:00, making it safe to enjoy some early morning activities. By 09:00, it reaches 2, hinting at the day's potential. But it’s at 10:00 that the UV Index really picks up, soaring to 4 as the sun ascends. The peak intensity occurs between 12:00 and 14:00, where it hits a sizzling 10—a clear signal to seek shade and wear sunscreen! After this zenith, the UV levels gradually dip, falling to 8 by 16:00, then to 5 at 17:00, and finally tapering off to 2 by 19:00. Embrace some caution during those midday hours, as the sun’s embrace can be fierce!
| 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 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons change, so do the UV index levels, with highest risks typically occurring from April to September. During these months, especially in June when the UV index reaches an extreme level of 11, the burn time is as short as 10 minutes. Visitors and residents should be particularly vigilant during this period, taking necessary precautions such as applying sunscreen with a high SPF, wearing protective clothing, and limiting sun exposure during peak hours. Conversely, during the winter months from January to March, the UV levels are substantially lower, categorized as moderate to high, allowing for safer outdoor activities with burn times ranging from 25 to 30 minutes. It’s crucial to remain aware of these seasonal changes to protect skin health throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Braga UVI | 2 | 4 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 2 |
| Porto UVI | 2 | 4 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 2 |
| Amadora UVI | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
| Lisbon UVI | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
| Setubal UVI | 3 | 5 | 6 | 9 | 10 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
| Bandeiras | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |