Today in Aosta Valley, Italy, the sun rises at 5:49 AM and sets at 9:23 PM, giving the city exactly 15h 33m of daylight. That is 1 minutes shorter than yesterday—just past its peak, losing daylight slowly. With 167 days until the Winter Solstice on December 21, Aosta Valley is currently in its Summer season.
Golden Hour & Twilight Windows in Aosta Valley
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Aosta Valley runs from N/A to 6:34 AM. The evening golden hour begins at 8:37 PM and lasts until 9:23 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. At its temperate latitude, Aosta Valley experiences strong seasonal contrast. Today's 15h 33m of daylight differs significantly from its winter minimum.
Solar Noon & UV Index
Solar noon in Aosta Valley falls exactly at 1:36 PM, which is the moment the sun reaches its peak altitude of 66.35 above the horizon. At this specific time, the solar angle produces an extreme UV level for Aosta Valley. Outdoor work during solar noon carries real sunburn risk within 10 minutes of unprotected exposure.
Why Does Sunrise Shift in Aosta Valley?
At Aosta Valley's latitude of 45.730099°, the sun currently rises at an azimuth of 374.15° (NNE). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Aosta Valley are calculated using advanced solar algorithms (SunCalc) based on coordinates 45.730099, 7.387426. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Aosta Valley (Past Years)
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Here is a comparison of today's sunrise and sunset times in Aosta Valley versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 5:49 AM | 9:23 PM | 15h 33m |
| 2025 | 5:49 AM | 9:23 PM | 15h 33m |
| 2021 | 5:49 AM | 9:23 PM | 15h 33m |
Frequently Asked Questions
What time does the sun rise in Aosta Valley today?
In Aosta Valley, the sun rises at exactly 5:49 AM and sets at 9:23 PM today. This gives the city a total of 15h 33m of daylight.
When is golden hour in Aosta Valley today?
Today, morning golden hour in Aosta Valley runs from N/A to 6:34 AM. Evening golden hour begins at 8:37 PM and lasts until 9:19 PM.
Why does sunrise in Aosta Valley shift every day?
At Aosta Valley's latitude, the sun currently rises at an azimuth of 374.15° (NNE). Because of Earth's tilt, the city is just past its peak, losing daylight slowly until the Winter Solstice on December 21.
What is the UV Index in Aosta Valley at solar noon?
Solar noon occurs at 1:36 PM when the sun reaches 66.35. This produces an extreme UV level for Aosta Valley. Outdoor work during solar noon carries real sunburn risk within 10 minutes of unprotected exposure.
Has the sunrise time in Aosta Valley changed compared to previous years?
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Exactly one year ago in 2025, sunrise was at 5:49 AM, and five years ago in 2021, it was at 5:49 AM.