Longest and shortest day in Guangzhou
In Guangzhou, China, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 13h 34m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 10h 43m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 06:31 | 18:37 | 12h 7m |
| June solstice | Sunday, 21 June 2026 | 05:41 | 19:15 | 13h 34m |
| September equinox | Tuesday, 22 September 2026 | 06:15 | 18:23 | 12h 8m |
| December solstice | Monday, 21 December 2026 | 07:03 | 17:46 | 10h 43m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 07:10 | 18:02 | 10h 52m |
| February | 06:59 | 18:22 | 11h 23m |
| March | 06:36 | 18:35 | 11h 59m |
| April | 06:06 | 18:47 | 12h 41m |
| May | 05:46 | 19:00 | 13h 15m |
| June | 05:40 | 19:13 | 13h 33m |
| July | 05:50 | 19:15 | 13h 26m |
| August | 06:03 | 18:59 | 12h 56m |
| September | 06:13 | 18:30 | 12h 17m |
| October | 06:23 | 18:01 | 11h 38m |
| November | 06:40 | 17:42 | 11h 2m |
| December | 07:00 | 17:43 | 10h 44m |
Why the day gets longer and shorter in Guangzhou
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Guangzhou 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 Guangzhou sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Guangzhou
When is the longest day in Guangzhou?
The longest day in Guangzhou falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 13h 34m of daylight, sunrise at 05:41 and sunset at 19:15.
When is the shortest day in Guangzhou?
The shortest day in Guangzhou falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 10h 43m of daylight, sunrise at 07:03 and sunset at 17:46.
How much does day length change through the year in Guangzhou?
Between the longest and shortest day, Guangzhou gains and loses about 2h 51m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Guangzhou's coordinates with SunCalc, not looked up from a table.