Tômbua, formerly known as Porto Alexandre, is a city and municipality in Angola, in Namibe Province.

[1][4][5] It is located on the shore of Porto Alexandre, an important harbor on the South Atlantic Ocean for oil production and fishing.

[6] The port had refrigeration facilities installed with European Union assistance at the Tombwe canning factory.

This is believed to have resulted from ocean warming, harvesting by industrial-sized foreign ships, and oxygen depletion.

The prime fishing area, characterized by upwelling nutrient-rich cold water, has moved south along the Namibian coast.