Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Aosta, Italy, where the stunning alpine backdrop meets a range of sunlight exposure. As you bask in the beauty of this picturesque valley, knowing the UV levels helps in preventing sunburn and safeguarding your skin health. With the region's climate reflecting a high elevation, UV risks can spike, particularly during midday, where levels reach a peak of 11—a clear signal to take precautions. Stay informed and protect yourself while enjoying the vibrant outdoors that Aosta has to offer!
As the sun rises, so does the UV Index, beginning modestly at 1 at 07:00. By 08:00, it climbs to 2, but it's by 10:00 that it really picks up pace, reaching a notable 6. The peak occurs between 12:00 and 14:00, where the index hits a sizzling 10 and 11, signaling intense sun exposure. As the afternoon wears on, we see a slight decline: 15:00 drops to 10, followed by a decrease to 7 by 16:00, and then it gently tapers off to 5 at 17:00. The evening brings some relief, with the index falling to 3 by 18:00 and wrapping up the day at 2 by 19:00. It’s a reminder to stay protected during those peak hours!
| 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 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Seasonal variations in UV exposure highlight significant changes throughout the year. The highest UV Index readings occur from March to August, reaching a peak of 11 in June and July, marking these months as extreme risk periods with a burn time of only 10 minutes. April and May also record very high indices, necessitating caution while outdoors. October follows with a high UV Index of 6, ensuring that UV exposure remains a concern during early fall. Conversely, the winter months (November and December) present a moderate to low risk, with indices dropping to 3 and 2, allowing for longer burn times. Visitors and residents are advised to take protective measures during high-risk months, especially from March to August. This includes 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 |
| 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 |
| Aosta | 3 | 5 | 8 | 9 | 10 | 11 | 11 | 10 | 8 | 6 | 3 | 2 |