Summer Solstice June 2024. In the northern hemisphere, it is the longest day of the year, marking the start of summer. The solstice is an astronomical event that happens twice, once in summer and once in winter, each year when the sun reaches its highest position in.

The solstice always occurs between 20 and 22 june, and during a leap year (such as 2024) it always falls on 20 june. The word solstice comes from the latin words “solis ”, which means “sun ”, and “stitium ”, which means “to stand still” or “to stop ”, hence,.