Daylight hours in Wollongong
Wollongong gets 14h 26m of daylight on its longest day in December, and 9h 52m on its shortest in June — a difference of 4h 34m across the year.
How fast the days change
Around 6 April, Wollongong gains or loses about 2.2 minutes of daylight every day.
Enough to notice over a fortnight, though the seasons arrive more gently here than further from the equator.
Sunrise and sunset by month
On the 15th of each month, in Australia/Sydney local time, daylight saving included.
| Month | Sunrise | Sunset | Daylight | Solar noon |
|---|---|---|---|---|
| January | 05:59 | 20:11 | 14h 12m | 13:05 |
| February | 06:30 | 19:50 | 13h 20m | 13:10 |
| March | 06:55 | 19:15 | 12h 20m | 13:05 |
| April | 06:19 | 17:33 | 11h 14m | 11:56 |
| May | 06:42 | 17:03 | 10h 21m | 11:52 |
| June | 07:00 | 16:52 | 9h 52m | 11:56 |
| July | 07:00 | 17:04 | 10h 03m | 12:02 |
| August | 06:36 | 17:25 | 10h 49m | 12:01 |
| September | 05:56 | 17:47 | 11h 51m | 11:51 |
| October | 06:14 | 19:09 | 12h 55m | 12:42 |
| November | 05:43 | 19:38 | 13h 54m | 12:40 |
| December | 05:38 | 20:04 | 14h 26m | 12:51 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 06:59 | 19:08 | 12h 09m |
| June solstice | 21 Jun | 07:02 | 16:53 | 9h 51m |
| September equinox | 22 Sep | 05:46 | 17:52 | 12h 06m |
| December solstice | 21 Dec | 05:40 | 20:08 | 14h 28m |
The equinoxes give almost exactly twelve hours of daylight everywhere on earth — "almost" because sunrise is defined by the sun's upper edge rather than its centre, and the atmosphere bends its light over the horizon before it has really arrived. Both lengthen the day by a few minutes.
Other cities in Australia
Assumptions
- Sea-level horizon. Hills, mountains and buildings all delay sunrise and bring sunset forward, sometimes by a lot in a valley.
- Standard refraction. Sunrise is taken at −0.833°, allowing for the sun's disc and average atmospheric bending. Unusual air conditions shift it by a minute or two.
- Local clock time, with daylight saving applied from the IANA timezone database.