Summer Solstice 2025 Day. There will be 16 hours and about 38 minutes of daylight. Time to go out to connect and to have fun.

The summer solstice announces the first day of summer, and its arrival happens twice a year—once in the northern hemisphere and once in the southern hemisphere. In 2025 the summer solstice will occur on saturday 21 june at 03.42 bst (02.42 gmt).