Winter Solstice 2025 Australia. The first day of winter (winter solstice or december solstice) is. Winter solstice 2025 (beginning of astronomical winter) on the day of the winter (december) solstice, the sun passes through the southernmost point of the ecliptic, that is, as far as.

What is the winter solstice? Explore summer solstice 2024 on december 21, the longest day in australia.