Temperate Southern Africa

Temperate Southern Africa is a biogeographic region of the Earth's seas, comprising the temperate waters of southern Africa, where the Atlantic Ocean and Indian Ocean meet. It is a marine realm, one of the great biogeographic divisions of the world's oceans. It includes the coastal and continental shelf waters of South Africa and Namibia, and reaches to southern Angola. It also includes the remote islands of Amsterdam and Saint-Paul, to the east in the southern Indian Ocean.

The boundary between the Temperate Southern Africa and Western Indo-Pacific marine realms is near Lake St. Lucia, in South Africa near the border with Mozambique. The realm extends up the Atlantic coast of Africa to Tômbua in southern Angola, where it transitions to the Tropical Atlantic realm.

Kelp forests grow on rocky seabeds along the coast of Namibia and western South Africa, from 22 to 35° S latitude. The dominant kelp species are Macrocystis sp., Ecklonia maxima, and Laminaria pallida.