Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Seroa, Portugal, a charming town nestled in a Csb climate zone. With UV levels peaking at 10 during the midday hours, awareness of these values can significantly aid in preventing sunburn and promoting long-term skin health. Knowing when the sun’s rays are strongest not only protects your skin but also enhances your outdoor enjoyment, allowing you to embrace Seroa’s beautiful landscapes with confidence. Stay informed about the UV Index and ensure your time in the sun is safe and enjoyable!
The UV Index peaks dramatically as the day unfolds, starting from a mild 1 at 7:00 AM and rising steadily. By 10:00 AM, it reaches 5, indicating more significant exposure risk, but it's not until 11:00 AM that it surges to 7—the sun is truly shining bright! The intensity escalates to a maximum of 10 at both 1:00 PM and 2:00 PM, marking the hours when sun protection is most crucial. As the afternoon wanes, it gradually dips, settling at 4 by 5:00 PM and returning to a safer 1 by 7:00 PM. It's essential to stay mindful of this UV trend, especially during peak hours, to protect your skin and enjoy the sunshine safely!
| 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 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV levels, which significantly impact skin safety for both visitors and residents. The UV Index starts low in January (2) and December (2), indicating a low risk for sunburn. However, as we move into the spring and summer months, particularly from March (6) to August (9), the risk escalates, with April (8) and the peak in June (11) classified as extreme. The high-risk months are primarily from April through August, where burn times are notably short, especially in June, with only 10 minutes until skin damage occurs. It is crucial for individuals during these months to take necessary precautions, such as wearing sunscreen, protective clothing, and limiting sun exposure, especially during peak hours. As fall approaches, the UV Index gradually decreases, but awareness remains essential for safe outdoor activities.
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 |
| Seroa | 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 |