Today in Sion, Switzerland, the sun rises at 5:47 AM and sets at 9:25 PM, giving the city exactly 15h 37m 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, Sion is currently in its Summer season.
Golden Hour & Twilight Windows in Sion
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Sion runs from N/A to 6:33 AM. The evening golden hour begins at 8:39 PM and lasts until 9:25 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. At its temperate latitude, Sion experiences strong seasonal contrast. Today's 15h 37m of daylight differs significantly from its winter minimum.
Solar Noon & UV Index
Solar noon in Sion falls exactly at 1:36 PM, which is the moment the sun reaches its peak altitude of 65.86 above the horizon. At this specific time, the solar angle produces an extreme UV level for Sion. Outdoor work during solar noon carries real sunburn risk within 10 minutes of unprotected exposure.
Why Does Sunrise Shift in Sion?
At Sion's latitude of 46.2311749°, the sun currently rises at an azimuth of 373.81° (NNE). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Sion are calculated using advanced solar algorithms (SunCalc) based on coordinates 46.2311749, 7.3588795. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Sion (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 Sion versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 5:47 AM | 9:25 PM | 15h 37m |
| 2025 | 5:47 AM | 9:25 PM | 15h 37m |
| 2021 | 5:47 AM | 9:25 PM | 15h 37m |
Frequently Asked Questions
What time does the sun rise in Sion today?
In Sion, the sun rises at exactly 5:47 AM and sets at 9:25 PM today. This gives the city a total of 15h 37m of daylight.
When is golden hour in Sion today?
Today, morning golden hour in Sion runs from N/A to 6:33 AM. Evening golden hour begins at 8:39 PM and lasts until 9:21 PM.
Why does sunrise in Sion shift every day?
At Sion's latitude, the sun currently rises at an azimuth of 373.81° (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 Sion at solar noon?
Solar noon occurs at 1:36 PM when the sun reaches 65.86. This produces an extreme UV level for Sion. Outdoor work during solar noon carries real sunburn risk within 10 minutes of unprotected exposure.
Has the sunrise time in Sion 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 5:47 AM, and five years ago in 2021, it was at 5:47 AM.