Last updated: July 2, 2025
In San Giuliano, Italy, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps residents and visitors alike to take necessary precautions against harmful sun exposure, which can lead to sunburn and long-term skin damage. With a Cfb climate that offers ample sunshine throughout the year, San Giuliano’s typical UV exposure peaks around midday, with index values reaching as high as 9 between noon and 2 PM. Stay informed and enjoy your time outdoors while safeguarding your skin!
The UV Index experience unfolds dramatically throughout the day, starting with a gentle maximum of 1 at 7:00 AM. As the sun climbs higher, the intensity increases, reaching 2 by 8:00 AM, and then surging to 3 at 9:00 AM. The peaks of the day occur around midday, with the index soaring to a robust 8 at 12:00 PM and hitting its highest point at 9 during both 1:00 PM and 2:00 PM. A gradual decline follows, where the UVI falls to 7 by 3:00 PM, then takes a further dip to 4 at 5:00 PM. As evening approaches, the UV levels taper off, settling back to a safe 2 by 6:00 PM and finally returning to a mild 1 by 7:00 PM. Stay protected during peak hours, particularly between 11:00 AM and 2:00 PM, when the sun's rays are most intense!
| 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 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 8 | 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 | 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, UV index levels fluctuate significantly, indicating varying exposure risks for both visitors and residents. From January to April, the UV index gradually increases from 2 (low) to 6 (high), with April marking the beginning of heightened caution. The high-risk months for UV exposure are May through August, where the index peaks at 9 (very high) for both June and July, necessitating careful sun protection measures, including sunscreen application and protective clothing, as burn times drop to just 15 minutes. As summer transitions to autumn, the index decreases, bringing lower risks with September falling back to 6 (high) and gradually lowering through the fall and winter months. Residents and visitors are advised to monitor UV levels regularly, especially during the peak summer months, to ensure safety while enjoying outdoor activities.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Giuliano | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 5 | 3 | 2 |
| 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 |
| 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 |