🌌 Space · every year
When is the autumn equinox?
Wednesday, 23 September 2026 · 01:05 BST
The autumn equinox 2026 is on Wednesday, 23 September 2026 — that's 32 days from today. It happens at 01:05 BST.
–Days
–Hours
–Minutes
–Seconds
Happening now
The autumn equinox marks the point where nights start to run longer than days in the northern hemisphere.
How the date is worked out
The moment the Sun crosses the celestial equator heading south — usually 22 or 23 September.
The autumn equinox dates
| Year | Date | Day | Countdown |
|---|---|---|---|
| 2024 | 22 September | Sunday | 23 months ago |
| 2025 | 22 September | Monday | 11 months ago |
| 2026 | 23 September | Wednesday | in 5 weeks |
| 2027 | 23 September | Thursday | in 13 months |
| 2028 | 22 September | Friday | in 2 years |
| 2029 | 22 September | Saturday | in 3 years |
| 2030 | 22 September | Sunday | in 4 years |
| 2031 | 23 September | Tuesday | in 5 years |
Frequently asked
How many days until the autumn equinox?
32 days — Wednesday, 23 September 2026.
Which day of the week does the autumn equinox fall on in 2026?
Wednesday.
Is the autumn equinox always on the same date?
The moment the Sun crosses the celestial equator heading south — usually 22 or 23 September.
When is the autumn equinox in 2027?
Thursday, 23 September 2027.
When was the autumn equinox in 2025?
Monday, 22 September 2025 — 11 months ago.