Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Urzelina, Portugal, especially as this charming locale experiences a mild maritime climate (Csb), which can still harbor significant sun exposure risks. As UV levels can reach as high as 10 during midday hours, awareness is key to preventing sunburn and safeguarding your skin health. Whether you're enjoying a leisurely day by the coast or exploring the picturesque countryside, keeping an eye on the UV Index can help ensure you take the necessary precautions to protect yourself from harmful UV radiation.
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 |
Throughout the year, the UV Index exhibits significant seasonal variations that affect sun exposure risks. High-risk months typically occur from April to September, where UV levels rise sharply, peaking in June with an extreme UV Index of 11. During these months, the recommended burn time decreases, reaching as little as 10 minutes in June. As a result, it is crucial for visitors and residents to take precautions during this period, such as wearing protective clothing, applying sunscreen with a high SPF, and seeking shade, especially during midday hours. Conversely, the winter months of January, February, and December present a much lower risk, with moderate UV exposure levels and longer burn times of 30 minutes. Being mindful of these seasonal changes in UV levels can help ensure safer outdoor experiences year-round.
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 |
| Urzelina | 3 | 5 | 7 | 8 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |