September Equinox 2024 Uk. According to the meteorological calendar, the first autumn day is sunday 1st september 2024. Normally, the autumn equinox falls between 22 and 24 september, and this year the equinox occurs on 22 september at 13:44 bst.

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, moving from the. The autumn equinox usually occurs on the 22nd or 23rd september, but it has been known to occur on the days on either side of those dates.