First Day Of Fall 2025 Activities. The date varies slightly year to year, but it is usually september 22 or 23. Whether you are alone or with friends and family and are looking for ideas of activities to add to your 2025 fall bucket list, read on to find out some of the fun things to do this.

 — in 2025, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall. The first day of fall in the northern hemisphere is sunday, sept.