Solstice 2024 Summer. Summer solstice 2024 (beginning of astronomical summer) on the day of the summer (june) solstice, the solar disk, moving along the ecliptic, will fall into its northernmost. It signals the beginning of astronomical summer north of the equator and winter in the southern hemisphere.
The solstice always occurs between 20 and 22 june, and during a leap year (such as 2024) it always falls on 20 june. Summer begins with the solstice on thursday, june 20, 2024, marking the astronomical first day of summer in the northern hemisphere.