When Is The First Day Of Autumn 2024. Autumn is marked as aug 1 to nov 1 with the eve of nov 1 being all hallows eve and the beginning of the dead season aka winter. First day of autumn falls on september 22 this year.
Autumn 2024 starts on sunday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the changing tilt of the earth’s axis. What a nice date for this year!