Official Summer Date 2025 Calendar. Here are the equinox and solstice dates—plus, answers to common questions about the seasons of the year in north america. Download the monthly calendar for the summer of 2025.
Summer 2025 starts on friday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth’s axis having reached its furthest tilt and begins to change directiion back. The summer period spans the following 4 months:
