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The first day of fall (autumn) 2026 is the autumnal equinox, which falls on Tuesday, September 22, 2026. This is the moment when the Sun crosses the celestial equator moving southward, making day and night approximately equal in length.
Fall (autumn) is the season between summer and winter, running from the September equinox to the December solstice. It is known for falling leaves, cooler temperatures, harvest festivals, Halloween, and Thanksgiving.
September 22, 2026
Tuesday
Fall in northern hemisphere; Spring in southern
Day and night are nearly equal in length
September 22 to December 21 in the northern hemisphere
Temperatures gradually drop as days get shorter
The first day of fall 2026 is the autumnal equinox on Tuesday, September 22, 2026. Use the live countdown above for the exact days, hours, minutes and seconds remaining.
Fall 2026 starts on Tuesday, September 22, 2026 — the autumnal equinox. This is when the Sun crosses the celestial equator heading south.
Autumn and fall are the same season. The first day of autumn 2026 is September 22, 2026. Use the live countdown above for the exact days remaining.
The fall equinox (autumnal equinox) is the moment when the Sun crosses the celestial equator moving southward. Day and night are approximately equal in length. In 2026 it falls on September 22.
Fall runs from the autumnal equinox (around September 22) to the winter solstice (around December 21) — approximately 89-90 days.
Yes — fall and autumn are two words for the same season. 'Fall' is predominantly used in American English, while 'autumn' is more common in British English.
Fall 2026 ends on December 21, 2026 — the winter solstice — when winter officially begins.
Divide the days shown in our live countdown by 7 to find the number of weeks until the first day of fall 2026.