Today in Siena, Italy, the sun rises at 6:27 AM and sets at 8:10 PM, giving the city exactly 13h 42m of daylight. That is 3 minutes shorter than yesterday—losing 3 minutes of daylight each day. With 122 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 7:06 AM. The evening golden hour begins at 7:31 PM and lasts until 8:10 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 1:18 PM, which is the moment the sun reaches its peak altitude of 57.68 above the horizon. At this specific time, the solar angle produces very high UV, typical of Siena in Summer. SPF 30+ is advisable for anyone spending more than 20 minutes outside.
Why Does Sunrise Shift in Siena?
At Siena's latitude of 43.1672059°, the sun currently rises at an azimuth of 19.62° (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 | 6:27 AM | 8:10 PM | 13h 42m |
| 2025 | 6:27 AM | 8:09 PM | 13h 42m |
| 2021 | 6:27 AM | 8:09 PM | 13h 42m |
Frequently Asked Questions
What time does the sun rise in Siena today?
In Siena, the sun rises at exactly 6:27 AM and sets at 8:10 PM today. This gives the city a total of 13h 42m of daylight.
When is golden hour in Siena today?
Today, morning golden hour in Siena runs from N/A to 7:06 AM. Evening golden hour begins at 7:31 PM and lasts until 8:07 PM.
Why does sunrise in Siena shift every day?
At Siena's latitude, the sun currently rises at an azimuth of 19.62° (NNE). Because of Earth's tilt, the city is losing 3 minutes of daylight each day until the Winter Solstice on December 21.
What is the UV Index in Siena at solar noon?
Solar noon occurs at 1:18 PM when the sun reaches 57.68. This produces very high UV, typical of Siena in Summer. SPF 30+ is advisable for anyone spending more than 20 minutes outside.
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 6:27 AM, and five years ago in 2021, it was at 6:27 AM.