Last updated: June 2, 2025
In San Juan de Aznalfarache, Spain, being aware of the UV Index is crucial for maintaining your skin health and preventing sunburn, especially during the sunny months. Understanding UV levels helps you protect yourself from harmful rays, ensuring your outdoor activities remain enjoyable and safe. With a Mediterranean climate characterized by hot summers, residents and visitors can face significant UV exposure, particularly during peak hours when the UV Index surges to 11. Stay informed and plan your sun protection strategy wisely to enjoy all that this vibrant area has to offer while safeguarding your skin from potential damage.
The UV Index data reveals a notable peak in solar intensity throughout the day. Starting at 0 at 7:00 AM, the index gradually climbs as the sun rises, hitting 1 by 8:00 AM and reaching 2 at 9:00 AM. A more significant jump occurs at 10:00 AM, with the index hitting 3 and continuing to rise steeply. By 11:00 AM, it escalates to 6, then soars to 8 at 12:00 PM, reaching its maximum of 11 at both 1:00 PM and 2:00 PM. The intensity begins to wane after 3:00 PM, descending to 9 by 4:00 PM and further dropping to 2 by 7:00 PM. This data underscores the importance of sun protection during peak hours, particularly between 11 AM and 2 PM, when UV exposure is at its highest.
| 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 | 6 | high | 25 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 de Aznalfarache | 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 |