Last updated: May 3, 2025
Understanding the UV Index is essential for residents and visitors in San Juan de la Nava, Spain, where the Csb climate offers plenty of sunny days throughout the year. As UV levels can soar, peaking at a remarkable 10 during midday, being aware of these readings is vital for preventing sunburn and protecting your skin health. With the risk of harmful UV exposure, particularly from late morning to early afternoon, knowing when to seek shade or apply sunscreen can make all the difference in ensuring a safe and enjoyable outdoor experience. Stay informed and keep your skin safe while enjoying the beautiful landscapes of San Juan de la Nava!
As the sun rises, the UV Index begins its steady climb, starting at a modest 1 at 7:00 AM. By 10:00 AM, it reaches a 3, signaling that the day is heating up. The midday sun really makes its presence felt at noon, when the index peaks at an impressive 8, escalating to a 10 by 2:00 PM—the pinnacle of UV intensity. While the sun begins to dip, the index gradually declines, slipping back to 6 by 5:00 PM and settling to a much more manageable 2 by 7:00 PM. It's a vivid reminder of the day's evolving sunlight spectrum, encouraging everyone to stay protected 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 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 10 | very high | 15 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, the UV Index experiences significant seasonal fluctuations, impacting sun safety for both visitors and residents. High-risk months occur from March through August, where the UV Index reaches high to extreme levels, particularly peaking at 11 in June and July, making protection essential. During these months, the recommended burn time decreases sharply to as little as 10 minutes, indicating the urgent need for sunscreen, hats, and protective clothing. In contrast, the winter months of January through February, and November through December present a lower risk with moderate exposure levels, allowing for a more leisurely enjoyment of sun exposure with 30-minute burn times. Residents and visitors are advised to remain vigilant regardless of the season and to adapt sun protection measures accordingly, especially when UV levels rise.
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 |
| San Juan de la Nava | 3 | 4 | 7 | 9 | 10 | 11 | 11 | 9 | 8 | 6 | 4 | 3 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |