When Does Winter Start 2025 Australia. The first day of winter 2025 is on the 21 st june in australia. If you don’t like the cold, winter is the ideal time to visit the north, including darwin, the top end and the kimberley.

In 2024, winter in australia will begin on june 1st and last until august 31st. That said, summer in australia is from december 1 to the end of february, followed by autumn from march 1 to may, then winter from june 1 to august, and finally spring from september 1 to the end of november.