Last updated: July 2, 2025
Understanding the UV Index in Ostuni, Italy is crucial for safeguarding your skin and overall health. With the potential for high UV levels, particularly during midday hours, awareness of UV exposure can help prevent painful sunburns and long-term skin damage. Nestled in a Csa climate zone, Ostuni experiences warm, sunny conditions that increase UV radiation intensity, especially between 11 AM and 2 PM. Staying informed about the daily UV Index not only ensures you enjoy the beautiful Italian sun responsibly but also helps you protect your skin from harmful effects.
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 levels exhibit notable seasonal fluctuations that affect sun exposure safety. From January to March, the UV Index gradually rises from 3 to 6, moving from a moderate to high exposure category, making it essential to use sun protection during this transition. April and May see a sharp increase, with the UV Index reaching 7 and 9, indicating very high exposure risks; individuals should limit sun exposure to just 15 minutes in May. The peak UV intensity occurs during June to August, where the index remains at a very high level of 9 or 10, and protective measures are crucial to prevent skin damage. As we move into September and October, the UV levels moderate slightly, returning to high categories but still warranting vigilance. Finally, November and December provide relief with lower UV readings of 3 and 2, respectively; however, sunblock use is still advisable, especially for prolonged outdoor activities. Visitors and residents should remain informed about the UV Index, particularly during the high-risk months of May through August, and take appropriate measures to stay protected.
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 |
| Ostuni | 3 | 4 | 6 | 7 | 9 | 10 | 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 |