First Official Day Of Winter 2024. Winter 2024 starts on saturday, december 21st in the northern hemisphere, with the first day of winter being the shortest daylight day of the year with the earth's axis having reached its furthest tilt away from the sun and. Learn what causes this change in seasons and winter solstice traditions from around the.

We are currently in fall since september 22, 2024. In the northern hemisphere this date falls in december every year.