What Is The Summer Solstice 2024. What exactly is the summer solstice? In 2024, summer solstice in the northern hemisphere will occur on thursday, june 20 around 4:50 p.m.
This marks the longest day of the year for locations in the northern hemisphere, and is the start of astronomical summer. The summer solstice for the northern hemisphere occurs on june 20, 2024, at 4:51 p.m.