Longest and shortest day in Port Moresby
In Port Moresby, Papua New Guinea, the longest day of 2026 is around the December solstice on Monday, 21 December 2026, with 12h 41m of daylight, and the shortest is around the June solstice on Sunday, 21 June 2026, with 11h 34m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:15 | 18:22 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 06:25 | 18:00 | 11h 34m |
| September equinox | Tuesday, 22 September 2026 | 06:01 | 18:07 | 12h 6m |
| December solstice | Monday, 21 December 2026 | 05:48 | 18:29 | 12h 41m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 06:01 | 18:38 | 12h 37m |
| February | 06:13 | 18:37 | 12h 24m |
| March | 06:15 | 18:25 | 12h 10m |
| April | 06:14 | 18:08 | 11h 54m |
| May | 06:17 | 17:58 | 11h 41m |
| June | 06:24 | 17:58 | 11h 35m |
| July | 06:28 | 18:05 | 11h 37m |
| August | 06:22 | 18:09 | 11h 48m |
| September | 06:05 | 18:07 | 12h 3m |
| October | 05:48 | 18:06 | 12h 18m |
| November | 05:39 | 18:12 | 12h 33m |
| December | 05:46 | 18:26 | 12h 40m |
Why the day gets longer and shorter in Port Moresby
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Port Moresby 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 Port Moresby sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Port Moresby
When is the longest day in Port Moresby?
The longest day in Port Moresby falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 12h 41m of daylight, sunrise at 05:48 and sunset at 18:29.
When is the shortest day in Port Moresby?
The shortest day in Port Moresby falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 11h 34m of daylight, sunrise at 06:25 and sunset at 18:00.
How much does day length change through the year in Port Moresby?
Between the longest and shortest day, Port Moresby gains and loses about 1h 7m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Port Moresby's coordinates with SunCalc, not looked up from a table.