Longest and shortest day in Niigata
In Niigata, Japan, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 14h 48m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 9h 32m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 05:48 | 17:55 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 04:21 | 19:09 | 14h 48m |
| September equinox | Tuesday, 22 September 2026 | 05:31 | 17:41 | 12h 10m |
| December solstice | Monday, 21 December 2026 | 06:55 | 16:27 | 9h 32m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 06:58 | 16:47 | 9h 49m |
| February | 06:34 | 17:21 | 10h 47m |
| March | 05:56 | 17:50 | 11h 54m |
| April | 05:09 | 18:19 | 13h 9m |
| May | 04:34 | 18:46 | 14h 12m |
| June | 04:20 | 19:07 | 14h 47m |
| July | 04:33 | 19:06 | 14h 33m |
| August | 04:58 | 18:37 | 13h 39m |
| September | 05:25 | 17:52 | 12h 27m |
| October | 05:51 | 17:06 | 11h 15m |
| November | 06:23 | 16:32 | 10h 9m |
| December | 06:52 | 16:25 | 9h 33m |
Why the day gets longer and shorter in Niigata
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Niigata 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 Niigata sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Niigata
When is the longest day in Niigata?
The longest day in Niigata falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 14h 48m of daylight, sunrise at 04:21 and sunset at 19:09.
When is the shortest day in Niigata?
The shortest day in Niigata falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 9h 32m of daylight, sunrise at 06:55 and sunset at 16:27.
How much does day length change through the year in Niigata?
Between the longest and shortest day, Niigata gains and loses about 5h 16m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Niigata's coordinates with SunCalc, not looked up from a table.