What Day Is The Summer Solstice 2025. Every year, the earth celebrates the summer solstice on the longest day and shortest night of the year, which officially kicks off the summer season. 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.
* the dates of summer given. The summer solstice occurs when the tilt of a.