Summer Solstice 2024 Date And. But why does this happen, and what is the summer solstice? The solstice officially marks the beginning of the astronomical summer, which ends when the autumn equinox falls on september 22.

The solstice always occurs between 20 and 22 june, and during a leap year (such as 2024) it always falls on 20 june. The sun will not set at the north pole, and at the south pole, it will not rise.