Summer Solstice 2024 Meaning. In 2025, the solstice moment will fall at 2:42 utc on june 21 (9:42 p.m. Summer begins with the solstice on thursday, june 20, 2024, marking the astronomical first day of summer in the northern hemisphere.

Here’s everything you need to know about the northern hemisphere’s longest day of the year. The summer solstice will take place on thursday 20th june at 9.51pm (bst) in the uk.