First Day Of Winter 2025 Australia. So, what is the winter solstice and why does it happen? 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.
In 2025, the first day of winter is saturday, december 21. The good news is that from this point on the days will begin to get longer until midsummer’s night in.