Le Perrier () is a commune in the Vendée department in the Pays de la Loire region in western France.
Le Perrier has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Le Perrier is . The average annual rainfall is with November as the wettest month. The temperatures are highest on average in July, at around , and lowest in January, at around . The highest temperature ever recorded in Le Perrier was on 18 July 2022; the coldest temperature ever recorded was on 2 January 1997.