When Is The Fall Equinox 2025 Uk. The first day of autumn often called fall (september. London the exact moment of the autumnal equinox in 2025 is 22 september, at 19:19:18.
This year, autumnal equinox is occurring on the below date and timing: The first day of autumn is in 2025 on september 22 (according to the astronomical definition).
