Summer 2025

Summer 2025. Summer 2025 starts on saturday, june 21, 2025 (in 193 days) and ends on monday, september 22nd 2025 (in 286 days). Find out the date when summer is in 2025 and count down the days until summer with a countdown timer.

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. North of the equator, fall begins in september.