When Does Winter Start 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. The 2024 winter solstice — the precise moment when the sun appears farthest south in the sky — is at 4:20 a.m.

When does winter start in 2024? The winter solstice, which marks the first day of winter 2024, occurs on saturday, december 21, 2024 at 4:21 a.m.