2024 Winter Solstice 2024. This year the winter solstice in the northern hemisphere is on 21 december and therefore our astronomical winter begins on that date. In 2024, the first day of winter is saturday, december 21.
Saturday marks the shortest day of the year and the official start of winter in the northern hemisphere. Winter will officially begin in the northern hemisphere on saturday, december 21, 2024, when the winter solstice occurs.