Last updated: July 2, 2025
In San Gennaro Vesuviano, Italy, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels is essential, as it helps prevent sunburn and reduces long-term skin damage. With a Mediterranean climate, residents and visitors face varying UV exposure risks throughout the day, peaking between 11:00 AM and 2:00 PM, when the UV Index reaches levels as high as 10. Staying informed about the UV Index can empower you to enjoy the sun safely, ensuring you and your loved ones are protected while basking in the beauty of this vibrant region.
As the day unfolds, the UV Index climbs steadily, peaking at an impressive 10 between 1 PM and 2 PM, marking the sun's intensity at its highest. Starting at a mild 1 at 7 AM, the index gradually rises, reaching 9 by noon and hitting 8 at 11 AM. The afternoon witnesses a slight dip, with values dropping to 7 by 3 PM and trailing off into lighter levels of 5 and 3 later in the day. By 7 PM, the UV Index returns to a soft 1, signaling the end of a sun-drenched day. It's essential to stay sun-safe during the peak hours, especially between 11 AM and 2 PM, when UV exposure can be most harmful.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 10 | 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 exposure changes significantly, with the highest risk months occurring between May and September. During this period, the UV Index peaks at 10 in June and July, indicating a very high risk of harm from unprotected sun exposure, with a burn time of only 15 minutes. In contrast, the months of January and December have a much lower UV Index of 3 and 2 respectively, classified as moderate and low, allowing for longer exposure times of 30 and 45 minutes before burning occurs. Visitors and residents are advised to take preventive measures, especially during the high-risk months of March to September, including wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize the risk of skin damage.
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 |
| San Gennaro Vesuviano | 3 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 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 |