Autumn 2024 Months And.  — in 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall. When does each season start in 2024?

The table below will allow you to view the autumn start and end dates for the years 2024, 2025 and 2026.  — when do the four seasons start in 2024—for spring, summer, fall, and winter?