When Does Summer Start 2025. Begins on sunday, september 1, and ends on saturday, november 30. In 2022, summer started on tuesday, june 21;.

In most education systems, the 2025 summer holidays will start in june. Summer solstice 2025 (beginning of astronomical summer) on the day of the summer (june) solstice, the solar disk, moving along the ecliptic, will fall into its northernmost point and will be.