Daylight hours in Coffs Harbour
Coffs Harbour gets 14h 05m of daylight on its longest day in December, and 10h 12m on its shortest in June — a difference of 3h 53m across the year.
How fast the days change
Around 6 April, Coffs Harbour gains or loses about 1.9 minutes of daylight every day.
Barely perceptible — near the equator the length of the day hardly changes at all, and the seasons announce themselves through rain and heat instead.
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 | 06:00 | 19:53 | 13h 53m | 12:56 |
| February | 06:27 | 19:36 | 13h 09m | 13:01 |
| March | 06:47 | 19:05 | 12h 18m | 12:56 |
| April | 06:06 | 17:28 | 11h 22m | 11:47 |
| May | 06:25 | 17:02 | 10h 36m | 11:43 |
| June | 06:41 | 16:54 | 10h 12m | 11:47 |
| July | 06:42 | 17:04 | 10h 22m | 11:53 |
| August | 06:21 | 17:22 | 11h 01m | 11:52 |
| September | 05:46 | 17:39 | 11h 53m | 11:42 |
| October | 06:09 | 18:57 | 12h 48m | 12:33 |
| November | 05:42 | 19:21 | 13h 38m | 12:32 |
| December | 05:39 | 19:44 | 14h 05m | 12:42 |
Solstices and equinoxes
| Date | Sunrise | Sunset | Daylight | |
|---|---|---|---|---|
| March equinox | 20 Mar | 06:50 | 18:59 | 12h 09m |
| June solstice | 21 Jun | 06:43 | 16:54 | 10h 11m |
| September equinox | 22 Sep | 05:37 | 17:43 | 12h 06m |
| December solstice | 21 Dec | 05:42 | 19:48 | 14h 06m |
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.