Today in Sumy, Ukraine, the sun rises at 4:36 AM and sets at 8:56 PM, giving the city exactly 16h 20m 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, Sumy is currently in its Summer season.
Golden Hour & Twilight Windows in Sumy
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Sumy runs from N/A to 5:28 AM. The evening golden hour begins at 8:04 PM and lasts until 8:56 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. At its temperate latitude, Sumy experiences strong seasonal contrast. Today's 16h 20m of daylight differs significantly from its winter minimum.
Solar Noon & UV Index
Solar noon in Sumy falls exactly at 12:46 PM, which is the moment the sun reaches its peak altitude of 51.59 above the horizon. At this specific time, the solar angle produces very high UV, typical of Sumy in Summer. SPF 30+ is advisable for anyone spending more than 20 minutes outside.
Why Does Sunrise Shift in Sumy?
At Sumy's latitude of 50.9119775°, the sun currently rises at an azimuth of 415.13° (NE). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Sumy are calculated using advanced solar algorithms (SunCalc) based on coordinates 50.9119775, 34.8027723. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Sumy (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 Sumy versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 4:36 AM | 8:56 PM | 16h 20m |
| 2025 | 4:36 AM | 8:56 PM | 16h 19m |
| 2021 | 4:36 AM | 8:56 PM | 16h 19m |
Frequently Asked Questions
What time does the sun rise in Sumy today?
In Sumy, the sun rises at exactly 4:36 AM and sets at 8:56 PM today. This gives the city a total of 16h 20m of daylight.
When is golden hour in Sumy today?
Today, morning golden hour in Sumy runs from N/A to 5:28 AM. Evening golden hour begins at 8:04 PM and lasts until 8:52 PM.
Why does sunrise in Sumy shift every day?
At Sumy's latitude, the sun currently rises at an azimuth of 415.13° (NE). 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 Sumy at solar noon?
Solar noon occurs at 12:46 PM when the sun reaches 51.59. This produces very high UV, typical of Sumy in Summer. SPF 30+ is advisable for anyone spending more than 20 minutes outside.
Has the sunrise time in Sumy 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 4:36 AM, and five years ago in 2021, it was at 4:36 AM.