Summer Solstice Date 2025. When is summer solstice 2025? London the exact moment of the summer solstice in 2025 is 21 june, at 03:42:02.
On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial. The northern hemisphere experiences a summer solstice when the sun is directly overhead at its farthest north point in the sky.