Autumn Equinox 2026
Equal day and night mark autumn's arrival
Countdown to Event
The autumn equinox marks the astronomical beginning of fall in the Northern Hemisphere. Day and night are approximately equal in length.
How Many Days Until Fall Equinox?
Days Until
102
days until Fall Equinox
Weeks Until
14w 4d
weeks until Fall Equinox
Hours Until
2,428
hours until Fall Equinox
Falls On
Tuesday
Fall Equinox 2026
Season definition note
Astronomical seasons are marked by equinoxes and solstices. Meteorological seasons use fixed calendar months.
Event Progress
Start Date
Sep 22
Duration
1 days
Source
Last verified: April 27, 2026
Fall Equinox Countdown FAQ
How many days until Fall Equinox?
There are 102 days until Fall Equinox 2026. Mark your calendar and start your countdown!
How many weeks until Fall Equinox?
There are 14 weeks and 4 days until Fall Equinox 2026. That's approximately 3.4 months away.
What day is Fall Equinox 2026?
Fall Equinox 2026 falls on Tuesday, September 22, 2026. It's on a Tuesday.
How many hours until Fall Equinox?
There are approximately 2,428 hours until Fall Equinox 2026. Keep watching our countdown timer for the exact time remaining!
When is Fall Equinox 2026?
Fall Equinox is on Tuesday, September 22, 2026. With 102 days to go, there's still time to prepare!