Last updated: July 2, 2025
Staying aware of the UV Index in San Isidro, Spain is crucial for ensuring your skin health and preventing sunburn. With the Mediterranean climate bringing sunny days and high UV exposure, understanding the daily UV levels can help you plan outdoor activities safely. During peak hours, especially between 11:00 AM and 3:00 PM, the UV Index can climb to an intense 12, indicating a very high risk of harm from unprotected sun exposure. By educating yourself on these UV levels, you can enjoy the beautiful weather while taking the necessary precautions to protect your skin.
As the sun rises, the UV Index begins at a low 0 at 07:00, making it a safe time for outdoor activities. By 08:00, it slowly climbs to 1, still within the minimal risk range. The intensity rises steadily throughout the morning, reaching 2 by 09:00 and hitting 3 at 10:00. As we approach noon, the UV levels surge, peaking at an impressive 12 between 14:00 and 15:00, indicating a high risk of harm from unprotected sun exposure. After this peak, the index starts to drop, returning to 6 by 17:00 and gradually winding down to 2 by sunset at 19:00. It's essential to stay protected during those peak hours, especially between 11:00 and 15:00, to enjoy the outdoors safely!
| 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 | 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 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
The UV Index varies significantly throughout the year, with the highest risk months occurring from March to September. During this period, the index reaches extreme levels of 12, particularly in May, June, and July, where the burn time drops to just 10 minutes. In contrast, January starts with a moderate index of 5, allowing for a burn time of 30 minutes, but by February, the risk escalates to high with an index of 7. As the seasons progress, October marks a return to very high levels at 9, tapering to high levels in November and December. Visitors and residents should take precautions during high-risk months by wearing protective clothing, using sunscreen, and limiting sun exposure, particularly during midday hours when UV rays are strongest. Staying informed and vigilant can help mitigate the risks associated with increased UV exposure 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 |
| Sevilla UVI | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 9 | 7 | 4 | 3 |
| San Isidro | 5 | 7 | 9 | 11 | 12 | 12 | 12 | 11 | 11 | 9 | 7 | 6 |