Last updated: August 1, 2025
Understanding the UV Index is crucial for residents of Valderrebollo, Spain, where the sun shines brightly in its Csb climate. Being aware of UV levels plays a vital role in preventing sunburn and protecting skin health, especially during peak hours when UV exposure can reach dangerously high levels, peaking at 11 from 1 PM to 2 PM. With its mild climate, Valderrebollo offers plenty of opportunities to enjoy the outdoors, but it's essential to stay informed about UV risks to ensure safe sun practices and maintain healthy skin. By keeping an eye on the UV Index, you can safeguard yourself and your loved ones from the harmful effects of UV radiation while enjoying all that this beautiful region has to offer.
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 |
Throughout the year, UV Index levels show notable seasonal changes, with the highest values occurring during the summer months. High-risk months include April through August, particularly June and July, when the UV Index reaches extremes of 11, necessitating a burn time of just 10 minutes for unprotected skin. During this period, it is crucial for visitors and residents to take extra precautions, such as wearing sunscreen, protective clothing, and seeking shade, especially during peak hours. Conversely, from November to February, the UV Index is moderate, with burn times of up to 30 minutes, allowing for more relaxed sun exposure. Nevertheless, even during these lower UV months, it's advisable to remain vigilant and protect your skin.
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 |
| Valderrebollo | 3 | 4 | 6 | 9 | 10 | 11 | 11 | 10 | 8 | 6 | 4 | 3 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |