Last updated: August 1, 2025
Understanding the UV Index in Siguenza, Spain is crucial for protecting your skin and overall health. With the sun's rays reaching their peak intensity during the midday hours, being aware of UV levels can help you take necessary precautions to prevent sunburn and long-term skin damage. Siguenza's Cfb climate, characterized by warm summers, presents specific UV exposure risks that should not be overlooked. As UV Index readings can soar to 11 during peak hours, it’s essential to stay informed and practice safe sun habits to enjoy all the beauty this charming town has to offer while keeping your skin safe.
As the day unfolds, the UV Index rises dramatically, starting at a modest 1 by 07:00 and steadily climbing to a peak of 11 between 14:00 and 15:00. This surge highlights the importance of staying protected under the sun, especially from 12:00 to 15:00, when the index exceeds 8—a strong indicator of harmful UV exposure. After this midday peak, the index gradually declines, settling back to 4 by 18:00 and dipping to 2 by 19:00. Those planning outdoor activities should take precautions during the most intense hours when the sun's rays are the strongest, ensuring a safe and enjoyable experience in the sun.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
The UV Index shows significant seasonal variation, with the highest values occurring during the summer months. From March to August, the UV Index climbs from 6 in March to a peak of 11 in both June and July, indicating extreme exposure risks and a burn time as short as 10 minutes. April and May also present very high risks, with indices of 9 and 10, respectively. In contrast, the UV Index drops to moderate levels during the winter months, specifically in January, February, and November, with values ranging from 2 to 4, where burn times extend from 30 to 45 minutes. As such, it is crucial for visitors and residents to exercise extra caution during the high-risk months of April to August, by wearing sunscreen, hats, and protective clothing, and limiting outdoor activities during peak sun hours to avoid harmful solar exposure.
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 |
| Madrid UVI | 3 | 4 | 6 | 8 | 10 | 11 | 11 | 9 | 8 | 6 | 4 | 3 |
| Siguenza | 3 | 4 | 6 | 9 | 10 | 11 | 11 | 10 | 8 | 6 | 4 | 2 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |