Winter Solstice 2024 Southern Hemisphere. Winter solstice takes place on december 21, 2024, in the northern hemisphere and on june 20, 2024, in the southern hemisphere. Australia will have its shortest day of the year today when the southern hemisphere experiences the winter solstice.
Why is that so important? In the northern hemisphere, the 2024 winter solstice will occur on december 21 at 09:20 gmt (december 21, 04:20 a.m.