When Is Winter Solstice Australia 2024. The winter solstice occurs at 06:54 the days become shorter as a result of the earth tilting away from the sun (at least in one hemisphere at a time). The winter solstice, which occurs around june 21st or 22nd, marks the astronomical start of winter.

The winter solstice, which occurs around june 21st or 22nd, marks the astronomical start of winter. The tilt of the earth’s axis will mean the southern hemisphere will be angled furthest away.