When Is The First Day Of Summer 2024 In Australia. Here is all you need to. On that day, the autumnal equinox will occur, marking the beginning of fall.

Summer in australia officially begins on december 1st and ends on february 28th (or 29th in a leap year). In 2022, the official first day of summer in australia (southern hemisphere) will occur on thursday, 22 december, at sharp 08:48am australian eastern daylight time.