Autumn Equinox 2025 Date

Autumn Equinox 2025 Date. Mabon (march 20, 2025) also known as: The 2025 autumnal equinox will occur on september 22, 2025, at 14:21 utc (coordinated universal time).

The data is provided by the institut de mécanique céleste et de calcul des éphémérides. This year, autumnal equinox is occurring on the below date and timing: