Southrepps is built on a low rise mix of glacial sands and gravels, with expanses of rich till formed from the so-called Cromer Forest Bed created in a warmer period when a great meandering river fringed rank forest vegetation.
Being in the east, sheltered from most of the extreme weather of the Atlantic from where most of Britain's rainfall comes, Southrepps has amongst the lowest rainfall in the UK, at less than 500 mm per year.