Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Vila Baleira, Portugal, especially given the region's mild Csb climate, characterized by sunny spells and moderate temperatures. As daylight intensifies, so do UV radiation levels, reaching a peak index of 11 around midday—a level that can lead to severe sunburn and long-term skin health issues if precautions are not taken. By staying informed about daily UV levels, you can protect your skin and enjoy the sun safely in this beautiful coastal paradise. Be sure to monitor the UV Index and take necessary precautions during the peak hours of exposure!
The UV Index shows a dramatic upward trend as the morning progresses, starting from a manageable 1 at both 7:00 AM and 8:00 AM. By 9:00 AM, it rises to 2, but the real climb begins around 10:00 AM with a sharp increase to 4. The peak arrives between 12:00 PM and 3:00 PM, where the index soars to a maximum of 11—a strong reminder of the sun’s intensity during midday. As the afternoon wanes, the UV Index begins to drop, falling back to 9 by 4:00 PM and gently decreasing to 2 by 7:00 PM. It’s a day where sun protection is essential from 10:00 AM to 3:00 PM when the UV levels are at their highest. Stay safe and embrace the sun wisely!
| 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 | 9 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons change, so does the UV Index, which indicates the strength of ultraviolet radiation. January and December feature moderate UV levels (index 4), allowing for longer exposure times of 30 minutes before burning. However, as early as February, the index rises to 6, marking the start of higher risk for skin damage with a burn time of just 25 minutes. The peak risk months occur mid-year, from June to August, when the index reaches an extreme level of 11, necessitating protective measures with a burn time of only 10 minutes. As fall approaches, September and October see a decline, though the UV Index remains very high (index 10 and 8 respectively), with 15 minutes of safe exposure. Residents and visitors should take precautions, especially during high-risk months, by seeking shade, wearing UV-blocking clothing, and applying sunscreen to minimize the risk of skin damage.
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 |
| Vila Baleira | 4 | 6 | 8 | 10 | 10 | 11 | 11 | 11 | 10 | 8 | 5 | 4 |