Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Tres, Italy, particularly during the sunnier months when UV levels can peak dramatically. With the region's Dfb climate, which features a blend of warm summers and cool winters, awareness of UV exposure becomes essential for preventing sunburn and protecting skin health. On sunny days, the UV Index in Tres can reach high levels—so knowing when to seek shade or apply sunscreen can help you enjoy the beautiful landscapes without compromising your well-being. Stay informed and stay protected as you bask in the stunning Italian sun!
Throughout the day, the UV Index exhibits a remarkable ascent, peaking at an impressive 10 from 1 PM to 2 PM. Starting from a low of 1 at 7 AM, the index gradually escalates, reaching 9 by noon. The sun's intensity continues to grow, prompting caution as it hits 8 at 11 AM and maintains a 10 between 1 PM and 2 PM, marking the day's most hazardous exposure levels. As the afternoon progresses, the index starts to decline, falling to 6 at 4 PM, before tapering off to 2 by 6 PM and finally resting at 1 at 7 PM. This dynamic swing emphasizes the importance of sun protection during peak hours, especially between 11 AM and 2 PM.
| 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 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in UV exposure highlight significant fluctuations in the UV Index. The months of May through August are particularly high-risk, with UV Index values reaching a peak of 10, indicating very high exposure and a burn time of only 15 minutes. Visitors and residents should remain vigilant during these months, employing protective measures such as sunscreen and clothing, especially between 10 AM and 4 PM when UV exposure is strongest. March and April also show increased risk with UV Index values of 6 and 7 respectively. Conversely, January and December present lower risk levels, with UV Index values of 2 indicating low exposure and longer potential burn times of 45 minutes. It is essential to monitor UV levels year-round and adjust sun protection strategies accordingly to ensure safety.
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 |
| Tres | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 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 |