Fall Equinox 2025 Dates Usa Dates. Autumn equinox 2025 (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. It usually occurs around september 23 and signals.

Use this opportunity to refresh the level of grace and harmony in your life. It is also called the autumnal equinox, fall equinox.