July 21, 2026 · Sumy, Ukraine
Sunset in Sumy today is at 20:44. Day length is 15h 52m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Sumy's coordinates and updated daily.
Sumy lies at 51°N. At this latitude, day length varies significantly through the year — from roughly 7–8 hours in midwinter to 16–17 hours at midsummer.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Sumy.
The longest day in Sumy is around 16h 32m (around June 21). The shortest is around 7h 55m (around December 21). Days are currently getting shorter — losing about 2 minutes per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 16:03 | 07:38 | 8h 25m |
| February | 16:57 | 06:55 | 10h 2m |
| March | 17:45 | 05:56 | 11h 49m |
| April | 19:35 | 05:48 | 13h 48m |
| May | 20:23 | 04:53 | 15h 31m |
| June | 20:57 | 04:27 | 16h 30m |
| July | 20:50 | 04:44 | 16h 6m |
| August | 20:04 | 05:28 | 14h 36m |
| September | 18:58 | 06:16 | 12h 41m |
| October | 17:51 | 07:04 | 10h 47m |
| November | 15:56 | 06:57 | 8h 58m |
| December | 15:36 | 07:38 | 7h 58m |