Today in Siena, Italy, the sun rises at 5:42 AM and sets at 8:57 PM, giving the city exactly 15h 14m 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, Siena is currently in its Summer season.
Golden Hour & Twilight Windows in Siena
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Siena runs from N/A to 6:25 AM. The evening golden hour begins at 8:14 PM and lasts until 8:57 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. Siena sits in the subtropics, where the annual swing in daylight is moderate.
Solar Noon & UV Index
Solar noon in Siena falls exactly at 1:20 PM, which is the moment the sun reaches its peak altitude of 67.77 above the horizon. At this specific time, the solar angle produces an extreme UV level for Siena. Outdoor work during solar noon carries real sunburn risk within 10 minutes of unprotected exposure.
Why Does Sunrise Shift in Siena?
At Siena's latitude of 43.1672059°, the sun currently rises at an azimuth of 385.54° (NNE). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Siena are calculated using advanced solar algorithms (SunCalc) based on coordinates 43.1672059, 11.467561. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Siena (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 Siena versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 5:42 AM | 8:57 PM | 15h 14m |
| 2025 | 5:42 AM | 8:57 PM | 15h 14m |
| 2021 | 5:42 AM | 8:57 PM | 15h 14m |
Frequently Asked Questions
What time does the sun rise in Siena today?
In Siena, the sun rises at exactly 5:42 AM and sets at 8:57 PM today. This gives the city a total of 15h 14m of daylight.
When is golden hour in Siena today?
Today, morning golden hour in Siena runs from N/A to 6:25 AM. Evening golden hour begins at 8:14 PM and lasts until 8:53 PM.
Why does sunrise in Siena shift every day?
At Siena's latitude, the sun currently rises at an azimuth of 385.54° (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 Siena at solar noon?
Solar noon occurs at 1:20 PM when the sun reaches 67.77. This produces an extreme UV level for Siena. Outdoor work during solar noon carries real sunburn risk within 10 minutes of unprotected exposure.
Has the sunrise time in Siena 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 5:42 AM, and five years ago in 2021, it was at 5:42 AM.