Start Of Summer 2025

Start Of Summer 2025. Online calendar of holidays and days off in united states for the summer of 2025. Summer begins with the solstice on friday, june 20, 2025, marking the astronomical first day of summer in the northern hemisphere.

Download the monthly calendar for the summer of 2025. The date of the summer solstice in 2025 the summer solstice in the northern hemisphere in 2025 will fall on june 20th.