Last updated: June 2, 2025
In Castellana, Italy, staying informed about the UV Index is essential for safeguarding your skin and overall health. Understanding UV levels can help you prevent sunburn and long-term skin damage, especially during peak exposure hours. With Castellana’s Mediterranean climate, summer days often bring intense sunlight, making it crucial to pay attention to the UV Index, which can reach levels as high as 9 around noon. By being aware of the UV Index, you can enjoy the beautiful Italian sun while taking necessary precautions to protect yourself from harmful UV rays.
The UV Index throughout the day presents a clear pattern of intensity, peaking at midday. Starting from a mild level of 1 at 07:00, the index rises steadily, reaching 2 by 08:00. The real surge occurs between 09:00 and 13:00, where it escalates from 4 to a striking 9—the highest point of the day. As the afternoon unfolds, the intensity slightly declines to 7 at 15:00, before tapering off to 5 at 16:00. The evening sees a further decrease, settling back to 2 by 18:00 and returning to 1 at 19:00. For those enjoying outdoor activities, it’s essential to take precautions, especially during the peak hours from 11:00 to 14:00 when the UV rays are most potent.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index values exhibit notable seasonal changes. January and February see moderate exposure levels (UV Index 3-4), with a burn time of 30 minutes, making sun protection generally less critical. However, as we move into March and April, the UV Index rises to 6-7, indicating high exposure and reducing burn time to 25 minutes. The peak months of May through August present very high UV levels (UV Index 9), where a burn can occur in just 15 minutes, placing individuals at significant risk of skin damage. As autumn approaches, UV levels drop again, with September and October returning to high levels (UV Index 6-7), requiring protective measures for 25 minutes. Finally, November and December have moderate to low UV levels (UV Index 2-3), where burn times extend to 30-45 minutes. To ensure safety, it is advisable for visitors and residents to take extra precautions during the high-risk months of May to August, utilizing sunscreen, protective clothing, and seeking shade during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Milan UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 5 | 3 | 2 |
| Turin UVI | 2 | 3 | 6 | 7 | 8 | 10 | 9 | 9 | 7 | 5 | 3 | 2 |
| Rome UVI | 3 | 4 | 5 | 7 | 8 | 10 | 10 | 9 | 7 | 5 | 4 | 2 |
| Castellana | 3 | 4 | 6 | 7 | 9 | 9 | 9 | 9 | 7 | 6 | 3 | 2 |
| Naples UVI | 3 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |
| Palermo UVI | 3 | 5 | 6 | 8 | 9 | 10 | 10 | 9 | 8 | 7 | 4 | 3 |