| Bay of Saint-Augustin | |
|---|---|
| Location |
Atsimo-Andrefana |
| Coordinates | 23°30′15″S 43°41′00″E / 23.50417°S 43.68333°ECoordinates: 23°30′15″S 43°41′00″E / 23.50417°S 43.68333°E |
| River sources | Onilahy River |
| Ocean/sea sources | Indian Ocean |
| Basin countries |
|
| Settlements | Anakao, Saint-Augustin |
The Bay of Saint-Augustin is located in the region of Atsimo-Andrefanaat the south-western coast of Madagascar at the Mozambique Channel. This bay is the mouth of the Onilahy River at a distance of 35 kilometres south of Toliara.