Winter Aolstice 2025. This year the winter solstice in the northern hemisphere is on 21 december and therefore our astronomical winter begins on that date. For most people, the winter solstice is an astronomical event that tells them they have reached the winter season and the time of the year when nights are longer than days.
Winter 2025 starts on sunday, 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. In the northern hemisphere, it occurs when the sun is directly over the tropic of capricorn, which is located at.