July 21, 2026 · Kostroma, Russia
Sunrise in Kostroma today is at 03:49. Day length is 17h 8m. See below for sunset, solar noon, dawn and dusk — all times calculated astronomically for Kostroma's coordinates and updated daily.
Kostroma lies at 58°N. At this latitude, day length varies significantly through the year — from roughly 7–8 hours in midwinter to 16–17 hours at midsummer.
Sunrise shifts earlier through spring and later through autumn — changing fastest near the equinoxes and barely at all near the summer and winter solstices. See the year chart to visualise how sunrise and sunset times shift month by month for Kostroma.
The longest day in Kostroma is around 18h 7m (around June 21). The shortest is around 6h 31m (around December 21). Days are currently getting shorter — losing about 4 minutes per day.
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 08:49 | 16:03 | 7h 14m |
| February | 07:49 | 17:14 | 9h 25m |
| March | 06:34 | 18:18 | 11h 44m |
| April | 05:08 | 19:26 | 14h 19m |
| May | 03:55 | 20:32 | 16h 37m |
| June | 03:16 | 21:19 | 18h 4m |
| July | 03:39 | 21:07 | 17h 28m |
| August | 04:41 | 20:03 | 15h 22m |
| September | 05:46 | 18:39 | 12h 52m |
| October | 06:51 | 17:15 | 10h 24m |
| November | 08:02 | 16:02 | 8h 0m |
| December | 08:55 | 15:29 | 6h 35m |