Fall Equinox Date 2024. The first day of fall in 2024 arrives with the fall equinox on sunday, september 22, 2024, at 8:44 a.m. The start of fall will be at 7:43.

When do the four seasons start in 2024—for spring, summer, fall, and winter? Normally, the autumn equinox falls between 22 and 24 september, and this year the equinox occurs on 22 september at 13:44 bst.