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While many people mourn summer with the passing of Labor Day Weekend, the autumnal equinox is the official end of the summer season.

Besides sweater weather and pumpkin-spiced menu items , what does the equinox mean, and when is it in 2025?

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What is the autumnal equinox?

The autumnal equinox marks the start of autumn in the Northern Hemisphere.

The Earth travels around the sun at an angle, and for most of the year, the Earth’s axis is tilted either toward or away from the sun . That means the sun’s warmth and light fall unequally on the northern and southern halves of the planet.

When the Northern Hemisphere is tilted toward the sun

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