Winter Solstice 2025

Winter Solstice 2025. The winter solstice, which marks the first day of winter 2025, occurs on saturday, december 21, 2025 at 4:21 a.m. 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.

The winter solstice is the shortest day and longest night of the year after which the days begin to get longer and the nights get shorter. The astronomical start of winter is still a ways away, kicking off with the winter solstice on saturday, december 21, 2025.