Fall Equinox 2025
Fall Equinox 2025. Autumn officially arrives at 7:44 a.m. The 2025 fall equinox—also called the autumn equinox—takes place on sunday, september 22, 2025.
Normally, the autumn equinox falls between 22 and 24 september, and this year the equinox occurs on 22 september at 13:44 bst. Saturday, dec 21 1:20 am pst.