The astronomical start to the season begins on Sept. 22, 2025, at 2:19 pm EDT. Meteorologists and climatologists look at the seasons a little differently than most.

The Earth’s tilt on its axis gives us our seasons. In the Northern Hemisphere, the spring and fall equinoxes happen when the sun’s direct rays pass over the Equator. They’re farthest north on the summer solstice as we lean toward the sun. On the winter solstice , they reach their southernmost point while we lean away from the sun.

Our planet’s movement is predictable, but it isn’t perfect. Astronomical seasons start around the same time, but the exact date varies. The autumnal equinox occurs anywhere between Sept. 21-23. The winter solstice falls between Dec. 20-22. As a result, each season can be anywhere from 89 to 93 d

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