When Was The First Day Of Summer 2024 Kalender. All of the fall faqs—when does fall officially start? 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.
The next change of season will take place on. In 2024, the last day of summer in the northern hemisphere is september 22!