Shortest day of 2019

Ben Domensino, 21 June 2019

The southern hemisphere's winter solstice occurs tonight, making Friday the shortest day of 2019 in Australia.

Earth's angle relative to the sun changes throughout the year. During Australia's summer, the southern hemisphere is tilted towards the sun, making our days longer than nights. During Australia's winter, the southern hemisphere is tilted away from the sun and nights are longer than days.

Tonight's solstice - which occurs at 11:54pm in Perth and 1:54am in Sydney - marks the moment Earth's southern hemisphere reaches it furthest tilt away from the sun.

Friday will be the shortest day of 2019 based on the amount of time between sunrise and sunset. The further north you are, the longer the day will be.

The following list of day lengths shows that Friday will be over two hours longer in Darwin than Hobart (shown in hh:mm:ss):

  • Darwin - 11:23:56
  • Brisbane - 10:24:26
  • Perth - 10:03:50
  • Sydney - 09:54:08
  • Adelaide - 09:48:38
  • Canberra - 09:46:34
  • Melbourne - 09:32:41
  • Hobart - 09:01:06

The coldest time of the year for most of Australia typically occurs a few weeks after the June Solstice, because the oceans surrounding the continent take a while to cool down.