Longest and shortest day in Luxembourg
In Luxembourg, Luxembourg, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 16h 18m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 8h 8m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:38 | 18:48 | 12h 10m |
| June solstice | Sunday, 21 June 2026 | 05:28 | 21:46 | 16h 18m |
| September equinox | Tuesday, 22 September 2026 | 07:21 | 19:33 | 12h 12m |
| December solstice | Monday, 21 December 2026 | 08:29 | 16:37 | 8h 8m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 08:26 | 17:03 | 8h 36m |
| February | 07:45 | 17:54 | 10h 8m |
| March | 06:49 | 18:40 | 11h 50m |
| April | 06:44 | 20:28 | 13h 44m |
| May | 05:51 | 21:13 | 15h 22m |
| June | 05:27 | 21:44 | 16h 17m |
| July | 05:44 | 21:37 | 15h 53m |
| August | 06:26 | 20:52 | 14h 27m |
| September | 07:11 | 19:49 | 12h 38m |
| October | 07:56 | 18:45 | 10h 48m |
| November | 07:46 | 16:52 | 9h 6m |
| December | 08:25 | 16:35 | 8h 10m |
Why the day gets longer and shorter in Luxembourg
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Luxembourg 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 Luxembourg sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Luxembourg
When is the longest day in Luxembourg?
The longest day in Luxembourg falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 16h 18m of daylight, sunrise at 05:28 and sunset at 21:46.
When is the shortest day in Luxembourg?
The shortest day in Luxembourg falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 8h 8m of daylight, sunrise at 08:29 and sunset at 16:37.
How much does day length change through the year in Luxembourg?
Between the longest and shortest day, Luxembourg gains and loses about 8h 10m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Luxembourg's coordinates with SunCalc, not looked up from a table.