First Day Of Summer 2024 Uk Time. From an astronomical point of view, summer in the northern hemisphere officially begins on thursday, june 20 and ends. Summer begins with the solstice on thursday, june 20, 2024, marking the astronomical first day of summer in the northern hemisphere.

In 2024, these are the astronomical dates and times for the start of each season: This year, astronomical summer began on 21 june 2022 and ended on 23 september.