When Is Winter Solstice 2025 Uk. The summer solstice, which occurs around the 21 june in the northern hemisphere, is the day of the year with the longest period of daylight while the winter solstice, on or around the 21. The actual moment of the solstice in 2024 will occur at 9.21am gmt in the uk, but most people concentrate on the whole solstice day, which has been recognised by holidays and festivals in many cultures around the world.

This year the winter solstice in the northern hemisphere is on 21 december and therefore our astronomical winter begins on that date. It also lists astronomical sunrise and sunset timings on winter solstice day.