Windy Harbour is a rural locality situated in the South West region of Western Australia. It falls within the Shire of Manjimup and is positioned on the state's south coast, located approximately 27 km south of Northcliffe.
The area is characterized by its natural surroundings, as it is entirely surrounded by D’Entrecasteaux National Park. Geographically, Windy Harbour lies east of Augusta and west of Nornalup, situated just to the east of Point D'Entrecasteaux.