First Day Of Winter 2024 Australian Calendar. These dates may be modified as official changes are announced, so please check back regularly for updates. Friday, june 21, is the winter solstice in australia, shortest day of the year based on daylight hours.

In australia, winter lasts from june to august, with july being the coldest month of the year. As it’s the shortest day of the year, we’ll experience roughly 9 hours and 53 minutes of daylight in sydney, although this varies.