when the Fall season start?
01-09-2026
In the Northern Hemisphere, the start date of fall (autumn) depends on the definition used:
- Astronomical Fall: Starts around September 22 or 23 with the autumnal equinox.
- Meteorological Fall: Starts on September 1.
- Astronomical Fall: Starts around March 20 or 21.
- Meteorological Fall: Starts on March 1.