2024 Winter Solstice Australia Dates. The winter solstice (21 june in australia) has ancient and modern cultural significance and varied global celebrations. After the march equinox, the tilt of earth's axis angles the southern hemisphere further away from the sun, so days in australia become shorter.

The winter solsitice is both the shortest day of the year and also the longest night. The sun reaches winter solstice around 21 june each year and marks the astronomical beginning of winter for the southern hemisphere.