When Is The Autumn Equinox 2024 Uk. This date is about the 21st. In the northern hemisphere, the closest autumnal equinox will take place on september 22, 2024, at 12:44 gmt (08:44 a.m.

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. In 2024 the autumnal equinox will occur on 22 september at 12.44pm gmt (1.44pm bst).