First Day Of Fall 20254 2025 Fall. In 2025, the autumnal (fall) equinox arrives on monday, september 22, marking the official first day of fall. The start of fall will be.
Here’s a list of the exact dates and times of the four seasons in north america, including the first days of winter, spring, summer, and fall for the next ten years. For example, the spring equinox fell on march 19 this year, and in 2025, it will fall on march 20.