When Does Summer Start And End 2024. When does summer start and end in 2024? When is the first day of summer 2024?

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. Edt on june 20, according to timeanddate.com.