Winter 2025-2026 Monthly Calendar. 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 reached its furthest tilt away from the sun and begins to change. All sizes, even big 11×17, poster, and legal size.
The table below will allow you to view the winter start and end dates for the years 2023, 2024, 2025 and 2026. Great britain 2026 calendar online and printable for year 2026 with holidays, observances and full moons