September 2026 is autumn in the Northern Hemisphere, starting around September 22 or 23. In the Southern Hemisphere, September 2026 is spring.

Quick Scoop

  • Northern Hemisphere: September = autumn/fall.
  • Southern Hemisphere: September = spring.
  • If you mean “what season is September 2026?”, the answer depends on location.
[12][14] [10][13]
HemisphereSeptember 2026 season
Northern HemisphereAutumn / Fall
Southern HemisphereSpring
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