Last updated: June 2, 2025
Understanding the UV Index in Castalla, Spain is crucial for everyone who enjoys the region's sunny climate. With typical UV levels peaking during midday, awareness of these fluctuations can significantly aid in preventing sunburn and maintaining long-term skin health. Castalla's BSk climate presents unique challenges, especially during the summer months, where UV ratings can soar to a maximum of 12 between 1 PM and 2 PM. By keeping an eye on the UV Index, residents and visitors alike can take proactive measures to protect their skin and enhance their outdoor experiences.
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 |
| Castalla | 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 |