When Does Autumn Start
Autumn (autumnal equinox) marks the astronomical start of autumn. Find the exact date and time.
Next occurrence of Autumn Equinox
Wednesday, 23 September 2026
Autumn Equinox in 2026: Wednesday, 23 September 2026
What is Autumn Equinox?
The autumn equinox, also known as the autumnal equinox, occurs on approximately 23 September in the UK and marks the astronomical beginning of autumn. On this day, the duration of day and night are nearly equal. After the autumn equinox, nights become longer than days as the season progresses towards winter. Autumn is characterized by cooling temperatures, changing foliage, harvest time, and the return to school.
Traditions
- •Celebrating the autumn harvest
- •Picking apples and pumpkins
- •Harvest festivals and fairs
- •Back to school season
- •Changing decorations to autumn themes
- •Autumn walks and nature activities
- •Preparation for winter
- •Thanksgiving celebrations
Fun Facts
- ✨The autumn equinox marks when day and night have nearly equal length
- ✨The date varies between 22 and 24 September
- ✨After the autumn equinox, nights are longer than days
- ✨Autumn colours begin to appear as days shorten
- ✨The autumn equinox is significant in many cultures and traditions
When is Autumn Equinox each year?
| Year | Date | Day |
|---|---|---|
| 2026 | 23 September 2026 | Wednesday |
| 2027 | 23 September 2027 | Thursday |
| 2028 | 23 September 2028 | Saturday |
| 2029 | 23 September 2029 | Sunday |
| 2030 | 23 September 2030 | Monday |
| 2031 | 23 September 2031 | Tuesday |
| 2032 | 23 September 2032 | Thursday |
| 2033 | 23 September 2033 | Friday |
| 2034 | 23 September 2034 | Saturday |
| 2035 | 23 September 2035 | Sunday |
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