More 2025 Autumnal Equinox. For autumnal equinoxes for the next 12 years scroll down the page. The autumnal equinox, also known as the september equinox in the northern hemisphere, begins on the day when the sun appears to cross the celestial equator and heads southward.

For autumnal equinoxes for the next 12 years scroll down the page. This page provides date and time for autumnal equinox in the year 2025 for boydton, virginia, united states.