When Will The Fall Equinox Happen 2024 Dates. The autumn equinox is due to. Autumn equinox 2024 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,.
Normally, the autumn equinox falls between 22 and 24 september, and this year the equinox occurs on 22 september at 13:44 bst. This year, the autumn equinox will begin on sunday, september 22, 2024, at 12:44 utc (7:44 a.m.