2025 Winter Solstice at Cahokia Mounds
December 21 @ 7:00 am - 9:00 am
Cahokia Mounds celebrates the Winter Solstice 2025 on Sunday, December 21. It marks the shortest day and longest night of the year in the Northern Hemisphere, as the sun reaches its southernmost point in the sky. From this point forward, daylight hours gradually begin to increase.
