What Is The First Day Of Autumn In 2024 In Canada. The date varies slightly year to year, but it is usually september 22 or 23. With the autumn equinox taking place early sunday morning, we are officially in autumn, both meteorologically and astronomically.

The autumnal equinox.” in 2024, that first day of fall begins on september 22. In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m.