First Day Of Summer 2025 Uk Time. This year, the sun will reach its northernmost point at 9.50pm uk time on this date. It also lists astronomical sunrise and sunset timings on summer solstice day.
The first day of summer is also known as the summer solstice, and in 2025 it happens on thursday, june 20 at 4:51 p.m. โ summer begins with the solstice on thursday, june 20, 2025, marking the astronomical first day of summer in the northern hemisphere.