Fall Of 2024 Begins. The first day of fall is sunday, september 22, 2024—the same day as the autumn equinox—in the northern hemisphere. The first day of fall in 2024 arrives with the fall equinox on sunday, september 22, 2024, at 8:44 a.m.

When is the first day of fall in 2024? In 2024, the last day of summer in the northern hemisphere is september 22!