Last Day Of Summer 2025 Date

Last Day Of Summer 2025 Date. Thursday, june 20 is the official first day of northern astronomical summer for 2025 — summer solstice — which is the longest day of the year for this half of the planet. The dates of the astronomical summer season can vary from year to year.

Last day for clearance to graduate fall 2025 convocation. The true solstice will arrive in the northern hemisphere at exactly 4:51.