Fall

Autumn (also known as fall in North American English) is one of the four temperate seasons. Autumn marks the transition from summer into winter, usually in late September (northern hemisphere) or late March (southern hemisphere) when the arrival of night becomes noticeably earlier.

Autumn starts on or around 15 September and ends on about 6 November in solar term.

In Ireland, autumn begins on 1 August and ends 31 October, due to the Irish calendar.