Solstice 2025 Uk. In 2025 the summer solstice will occur on saturday 21 june at 03.42 bst (02.42 gmt). The shortest day of the year will be in 12 months, during the winter solstice on december 21, 2025, with a daylight length of 7 hours and 53 minutes.
On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator, moving from the northern hemisphere to the southern. This year, the winter solstice in the northern hemisphere is on 21 december, and therefore our astronomical winter begins today.
