Winter Solstice 2024 Date Southern Hemisphere. The first day of winter in the northern hemisphere is marked by the winter solstice, which occurs on saturday, december 21, 2024, at 4:21 a.m. When is the 2024 winter solstice in australia?
21, in the northern hemisphere, according to the u.s. The winter solstice marks the year’s longest night and shortest day.