Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Colelli, Italy, where the Mediterranean climate brings plenty of sunshine. Awareness of UV levels is vital for protecting your skin and preventing sunburn, especially during peak hours. With UV readings peaking at 9 around midday, the risk of UV exposure increases significantly, highlighting the importance of taking precautions. As you enjoy the warm, sunny days typical of our Csa climate, being mindful of these levels will help ensure your outdoor experiences remain both enjoyable and safe.
As the day unfolds, the UV Index soars to its peak by early afternoon, reaching a maximum of 9 between 12:00 PM and 1:00 PM. The sun’s intensity begins to rise at 8:00 AM with a level of 2, steadily climbing to a moderate level of 3 by 9:00 AM. The real heat kicks in at 10:00 AM, when it jumps to 6, and by 11:00 AM, it escalates to a high 7. Those venturing outdoors should take precautions, especially during the sunniest hours, as the index then plateaus at 9. After this peak, the UV radiation gradually diminishes, tapering off to 6 by 3:00 PM, and further decreasing to levels of 4 by 4:00 PM, then down to a safe 1 by 6:00 PM. Stay protected and enjoy the sunlight responsibly!
| 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 | 6 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels fluctuate significantly, with high-risk months identified primarily from April to September. During this period, the UV index peaks at 10, indicating very high exposure risk, particularly in June, July, and August. In contrast, winter months like January and December show a lower UV index of 3, falling into the moderate exposure category, where skin burns within 30 minutes of unprotected sun exposure. As spring approaches, the risk begins to rise, necessitating increased sun protection starting in March. Residents and visitors should be particularly cautious during the summer months, applying broad-spectrum sunscreen and seeking shade, especially when activities are planned 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 |
| 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 |
| Colelli | 3 | 5 | 6 | 8 | 9 | 10 | 10 | 10 | 8 | 6 | 4 | 3 |