Australia Winter Solstice 2024. Date and time the celestial milestone, which marks the shortest day and the longest night in the year, is being observed on saturday, december 21. The southern hemisphere’s winter solstice will occur in 10 days, marking the shortest day and longest night of the year in australia.

In 2024, winter in australia will begin on june 1st and last until august 31st. The winter solstice, or december solstice, occurs around december 21 or 22 in the northern hemisphere.