What Month Is Summer 2024. This year, the first day of summer, also known as the summer solstice, is thursday, june 20. Summer 2024 starts on thursday, 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.

This year the summer will start on thursday june 20, 2024 (day of the summer solstice) and will end on sunday september 22, 2024 with the autumnal equinox. When does each season start in 2024?