Fall Equinox 2024 Dates Uk. Begins on wednesday, march 20, and ends on thursday, jun 20. 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.
According to the astronomical autumn, the autumn equinox will signal the start of the season which starts on the 22nd of september 2024. Autumn equinox 2024 occurs sunday 22 september at 12:44pm (13:44 utc), as this is when the centre of the sun crosses the celestial equator.