First Day Of 2025 Winter. More rain possible later in the weekend. By the meteorological calendar, the first day of winter is always 1 december;
The first day of winter, also known as the winter solstice, typically falls around december 21st in the northern hemisphere. Winter 2025 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.