Last updated: June 2, 2025
Understanding the UV Index in San Isidro, Spain is crucial for safeguarding your skin in this sun-drenched locale. With a climate classified as BSk, residents and visitors alike experience intense ultraviolet radiation, especially during peak hours. Awareness of UV levels helps prevent sunburn and long-term skin damage, ensuring you can enjoy the beautiful outdoors worry-free. For instance, at midday, the UV Index soars to a high of 12, which poses significant risks. Stay informed and take protective measures to maintain your skin's health while soaking up the sun in this vibrant Spanish town!
Throughout the day, the UV Index exhibits a significant increase, peaking sharply in the early afternoon. Starting from a modest 1 at 7:00 AM, it gradually ascends to reach 12 by 2:00 PM, indicating a high risk of harm from unprotected sun exposure. The hours around 11:00 AM to 2:00 PM are especially critical, with values soaring to 11 and 12 respectively. As the afternoon progresses, the intensity begins to decline, dipping back to 6 by 5:00 PM and falling to 2 by 7:00 PM. To ensure your skin stays protected, it’s essential to take precautions during those peak hours when the sun's rays are most potent!
| 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 | 11 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons change, so too does the UV Index, resulting in varying levels of skin exposure risk. From January to March, the UV Index begins to rise, peaking at 6 in March, moving into a high exposure category with a burn time of just 25 minutes. The high-risk months of April through July see dramatic increases, with May and June reaching very high and extreme levels at 10 and 12, respectively, necessitating caution with burn times decreasing to as low as 10 minutes. As summer wanes, September and October still present significant risks, with indices of 9 and 7, although the burn times improve slightly. Conversely, November and December afford a reprieve, returning to a moderate exposure category with a UV Index of 4 and 3, allowing for a safer 30 minutes of unprotected sun exposure. Visitors and residents are advised to take proactive sun protection measures, especially between April and July, including using sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours.
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 Isidro | 3 | 5 | 6 | 8 | 10 | 12 | 11 | 10 | 9 | 7 | 4 | 3 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |