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When is Fall Equinox (Autumnal Equinox) 2026?
Tuesday, September 22, 2026
There are 149 days left until Fall Equinox (Autumnal Equinox) 2026.
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Fall Equinox (Autumnal Equinox)
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Date details for Fall Equinox (Autumnal Equinox) 2026
- Day of week: Tuesday
- Full date: Tuesday, September 22, 2026
- Days remaining: 149
- Weeks remaining: 21
Fall Equinox (Autumnal Equinox) 2026 is on Tuesday, September 22, 2026. That’s 149 days or 21 weeks from today. Track it with a free countdown widget on your iPhone.
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Open page →About Fall Equinox (Autumnal Equinox)
The Fall Equinox 2026 occurs on Tuesday, September 22nd. Day and night are approximately equal, marking the astronomical start of autumn in the Northern Hemisphere.
History & Significance
The autumnal equinox signals the transition from summer to fall. Many harvest festivals around the world are timed to this event, including the Japanese Shubun no Hi and the Chinese Mid-Autumn Festival. The equinox also marks the beginning of longer nights.
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