Winter Solstice 2025: A student’s guide to the year’s shortest day and longest night

On December 21, 2025, the Northern Hemisphere experiences its shortest daylight and longest night with the Winter Solstice. This astronomical event, caused by Earth's axial tilt, marks the sun's lowest point in the sky. From this day, daylight gradually increases, signaling a turning point in the seasons and a reminder of slow, steady change.

Winter Solstice 2025: A student’s guide to the year’s shortest day and longest night
On December 21, 2025, the Northern Hemisphere experiences its shortest daylight and longest night with the Winter Solstice. This astronomical event, caused by Earth's axial tilt, marks the sun's lowest point in the sky. From this day, daylight gradually increases, signaling a turning point in the seasons and a reminder of slow, steady change.