Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Seira, Spain, where the climate can lead to significant sun exposure. Awareness of UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. With typical UV Index peaks reaching 11 during the midday hours, it's vital to recognize the potential risks associated with outdoor activities in this beautiful region. As a part of the Cfb climate zone, Seira's mild yet sunny weather can easily entice individuals to spend more time outside, making it imperative to stay informed about UV intensity to safeguard your skin from harmful effects.
As the sun rises, the UV Index starts off mild, peaking at 1 by 8:00 AM. However, things heat up quickly! By 10:00 AM, it surges to 4, reaching 6 at 11:00 AM. The afternoon sun really cranks it up, hitting a maximum of 11 at 2:00 PM, making this the moment when protective measures should be a priority. As we approach late afternoon, the index begins to drop, settling at 6 by 5:00 PM and tapering off to 2 by 7:00 PM. Remember to stay sun-safe during those peak hours!
| 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 | 10 | very high | 15 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV Index levels fluctuate significantly, creating varying exposure risks for individuals. The high-risk months for UV exposure are April through August, with the highest readings occurring in June and July, where the UV Index reaches a peak of 11, classified as extreme. During these months, the recommended burn time drops to just 10 minutes. As such, it is crucial for both visitors and residents to adopt protective measures, including wearing sunscreen, protective clothing, and limiting sun exposure during peak hours. March marks the transition to higher UV levels, with an index of 6, while September and October drop back to high and moderate levels, respectively. Ultimately, staying informed about UV levels can help safeguard health year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Barcelona UVI | 3 | 4 | 5 | 7 | 8 | 10 | 10 | 9 | 7 | 6 | 3 | 2 |
| Zaragoza UVI | 3 | 4 | 6 | 8 | 9 | 11 | 11 | 9 | 8 | 6 | 3 | 2 |
| Valencia UVI | 3 | 4 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |
| Seira | 3 | 4 | 6 | 8 | 9 | 11 | 11 | 9 | 8 | 6 | 3 | 2 |
| Madrid UVI | 3 | 4 | 6 | 8 | 10 | 11 | 11 | 9 | 8 | 6 | 4 | 3 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |