December 2025 Calendar - Holidays and Important Dates

December 2025

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December 2025 Holidays

Dec 21 - Start of Winter
Dec 24 - Christmas Eve
Dec 25 - Christmas
Dec 31 - New Year's Eve
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About December 2025

December 2025 marks the end of the year with several significant celebrations and astronomical events. The month begins in the season of fall and transitions to winter with the Winter Solstice on December 21st. This day marks the shortest day of the year in terms of daylight hours in the Northern Hemisphere.

Key Dates and Celebrations

The month features several important holidays and observances, including Christmas Eve (December 24th) and Christmas Day (December 25th), which are celebrated by millions around the world. The month concludes with New Year's Eve on December 31st, setting the stage for celebrations welcoming 2026.

Astronomical Events

The Winter Solstice occurs on December 21st, 2025, marking the astronomical start of winter in the Northern Hemisphere. This day features the shortest period of daylight and the longest night of the year.