When Fall Starts 2025. Autumn 2025 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. According to the farmers almanac, the first day of fall is sunday, sept.
Find out when foliage foliage starts, how long fall foliage lasts, and where to go to. Here’s everything you should know about the fall equinox—plus our favorite fall facts, folklore, photos, and more!