When Was Fall 2025. At the september equinox, the sun is moving from north to south as it crosses above the equator. Autumn 2025 starts on monday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the changing tilt of the earth's axis.

At the september equinox, the sun is moving from north to south as it crosses above the equator. Easter is one of the most widely celebrated holiday seasons across australia.