Last updated: June 2, 2025
Understanding the UV Index in San Juan del Puerto is essential for safeguarding your skin and overall health in this vibrant Spanish town. With the region's Csa climate, characterized by hot summers and mild winters, UV levels can soar, particularly around midday, reaching as high as 11. Being aware of the UV Index helps you protect yourself from sunburn and long-term skin damage, making it crucial to plan your outdoor activities accordingly. Whether you're soaking up the sun on the beautiful beaches or exploring the town, staying informed about UV exposure risks can ensure you enjoy all that San Juan del Puerto has to offer while keeping your skin safe.
From the early morning hours, the UV Index begins to rise, starting at 0 at 7:00 AM. By 8:00 AM, it climbs to 1, signaling the sun's gentle presence. As the day progresses, the intensity increases, hitting 2 by 9:00 AM and reaching high levels of 3 at 10:00 AM. The UV Index spikes dramatically during midday, peaking at a powerful 11 from 2:00 PM to 3:00 PM—a critical time for sun exposure. The intensity gradually declines to 9 by 4:00 PM, and continues to drop, settling at 4 by 6:00 PM before easing to 2 by 7:00 PM. This data serves as a reminder of the sun's strength throughout the day, urging everyone to take precautions, especially during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | 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 | 10 | very high | 15 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 7 | high | 25 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons change, so do the UV index levels, with highest risks typically occurring from April to September. During these months, especially in June when the UV index reaches an extreme level of 11, the burn time is as short as 10 minutes. Visitors and residents should be particularly vigilant during this period, taking necessary precautions such as applying sunscreen with a high SPF, wearing protective clothing, and limiting sun exposure during peak hours. Conversely, during the winter months from January to March, the UV levels are substantially lower, categorized as moderate to high, allowing for safer outdoor activities with burn times ranging from 25 to 30 minutes. It’s crucial to remain aware of these seasonal changes to protect skin health throughout the year.
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 del Puerto | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |