Summer Solstice 2025 Time. 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 located at the maximum distance north of the celestial equator. The summer solstice is the longest day of the year in the northern hemisphere.
Here we explore when the summer solstice occurs and why. The summer solstice happens on thursday, june 20, 2024!