The Disaster Management Centre (DMC) said at least 193 people had died following a week of heavy rains brought on by Cyclone Ditwah, while 228 people were missing.
Organisers, Rising Tide, said the weekend protests, in which flotillas of kayaks entered shipping channels, had forced two coal ships to turn around instead of entering the port.
Members of Parliament (MPs) took the opportunity to grill alleged underworld crime boss Vusimuzi 'Cat' Matlala, as well as SAPS Lieutenant General Puleng Dimpane.