Longest and shortest day in Sendai
In Sendai, Japan, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 50m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 9h 30m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 05:40 | 17:47 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 04:13 | 19:03 | 14h 50m |
| September equinox | Tuesday, 22 September 2026 | 05:23 | 17:34 | 12h 11m |
| December solstice | Monday, 21 December 2026 | 06:49 | 16:19 | 9h 30m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 06:52 | 16:39 | 9h 47m |
| February | 06:27 | 17:14 | 10h 46m |
| March | 05:48 | 17:42 | 11h 54m |
| April | 05:01 | 18:12 | 13h 10m |
| May | 04:26 | 18:40 | 14h 14m |
| June | 04:12 | 19:01 | 14h 49m |
| July | 04:24 | 18:59 | 14h 35m |
| August | 04:50 | 18:30 | 13h 40m |
| September | 05:17 | 17:45 | 12h 28m |
| October | 05:44 | 16:59 | 11h 15m |
| November | 06:17 | 16:24 | 10h 7m |
| December | 06:45 | 16:17 | 9h 31m |
Why the day gets longer and shorter in Sendai
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Sendai 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 Sendai sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Sendai
When is the longest day in Sendai?
The longest day in Sendai falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 50m of daylight, sunrise at 04:13 and sunset at 19:03.
When is the shortest day in Sendai?
The shortest day in Sendai falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 9h 30m of daylight, sunrise at 06:49 and sunset at 16:19.
How much does day length change through the year in Sendai?
Between the longest and shortest day, Sendai gains and loses about 5h 20m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Sendai's coordinates with SunCalc, not looked up from a table.