Longest and shortest day in Duesseldorf
In Duesseldorf, Germany, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 16h 35m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 7h 53m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:35 | 18:45 | 12h 10m |
| June solstice | Sunday, 21 June 2026 | 05:17 | 21:52 | 16h 35m |
| September equinox | Tuesday, 22 September 2026 | 07:18 | 19:31 | 12h 13m |
| December solstice | Monday, 21 December 2026 | 08:34 | 16:27 | 7h 53m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 08:30 | 16:54 | 8h 23m |
| February | 07:46 | 17:48 | 10h 1m |
| March | 06:47 | 18:37 | 11h 49m |
| April | 06:38 | 20:28 | 13h 50m |
| May | 05:42 | 21:16 | 15h 34m |
| June | 05:16 | 21:50 | 16h 33m |
| July | 05:34 | 21:42 | 16h 8m |
| August | 06:19 | 20:54 | 14h 36m |
| September | 07:07 | 19:47 | 12h 40m |
| October | 07:56 | 18:40 | 10h 44m |
| November | 07:49 | 16:44 | 8h 55m |
| December | 08:30 | 16:25 | 7h 55m |
Why the day gets longer and shorter in Duesseldorf
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Duesseldorf leans toward the Sun for part of the year and away for the rest. When it leans toward the Sun the days lengthen and the Sun climbs higher; half a year later the opposite happens. The size of the swing depends on how far Duesseldorf sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Duesseldorf
When is the longest day in Duesseldorf?
The longest day in Duesseldorf falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 16h 35m of daylight, sunrise at 05:17 and sunset at 21:52.
When is the shortest day in Duesseldorf?
The shortest day in Duesseldorf falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 7h 53m of daylight, sunrise at 08:34 and sunset at 16:27.
How much does day length change through the year in Duesseldorf?
Between the longest and shortest day, Duesseldorf gains and loses about 8h 42m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Duesseldorf's coordinates with SunCalc, not looked up from a table.