Autumn Equinox
The end of summer and the start of autumn.
The autumnal equinox occurs in September each year, and in the northern hemisphere the date marks the end of summer and beginning of autumn.
Day and night are the same length today.
What rituals will you create to say goodbye to summer and prepare for autumn?
The autumn equinox is a natural marker in the year and can be a chance to pause and notice seasonal change. Falling leaves, ripening seeds, autumn colours and changing light all offer opportunities to observe the natural world and reflect on the transition from summer into autumn.
Find out more: What and when is the autumnal equinox? | Royal Museums Greenwich
When is the autumnal equinox in 2026?
In 2026 the autumnal equinox will occur on 23 September.
Find out more about equinoxes and solstices
Image - sunrise over Hackenthorpe - Muddy Faces HQ.