When Was The First Day Of Summer 2025. What exactly is the summer solstice? In the northern hemisphere, the next summer solstice will take place on june 20, 2025.

The first day of summer is also known as the summer solstice, and in 2025 it happens on thursday, june 20 at 4:51 p.m. In the northern hemisphere, the next summer solstice will take place on june 20, 2025.