Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Sant Julia de Cerdanyola, Spain, where the sun can shine intensely, especially during the summer months. As a Cfb climate zone, this charming town experiences sun exposure that can lead to sunburn and long-term skin health issues if precautions aren't taken. Knowing the daily UV levels helps you minimize your risk; for instance, between 12:00 and 14:00, the UV Index peaks at an impressive 11, indicating a very high level of solar radiation. Stay informed and enjoy the outdoors safely by learning how to protect yourself from UV harms!
As the sun rises, the UV Index starts off gently, peaking at 1 between 07:00 and 08:00. By 09:00, it climbs to 2, but the real intensity begins at 10:00, reaching 4. A dramatic surge occurs by 11:00, where it skyrockets to 7, and by 12:00, it reaches a blazing 9. The highest point comes at 13:00 with a 10, before peaking at 14:00 with an impressive 11. The afternoon shows a slight decline, dropping to 10 at 15:00 and easing to 8 by 16:00. As the sun begins its descent, the UV levels fall further to 6 at 17:00, 3 at 18:00, and finishing the day at a milder 2 by 19:00. This day's UV journey highlights the importance of sun protection, particularly during the midday peak!
| 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 | 7 | 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 | 3 | 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 |
| Sant Julia de Cerdanyola | 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 |