New research from Wits University shows tropical storms are not becoming more frequent but they are moving south - resulting in increased rainfall.
From rivers being reportedly full to accidents making news, this week's weather is expected to affect most of the country.
On average, the global temperature is 0.9C higher than a century ago, while global sea levels are 20cm higher than in 1880, says a report.
The homes of more than 300 residents in Ladysmith, KwaZulu-Natal, have been damaged by large hail stones as a new storm moved into the area.
Floods in KwaZulu-Natal had claimed five lives by Wednesday as heavy rains continued to soak large parts of the country.
A woman drowned in her car on Wednesday evening when it was washed away in Bryanston during heavy rains, Gauteng paramedics said.
The icy winds and grey skies over the northern part of South Africa will start disappearing from Friday, says the South African Weather Service.
There's nothing like a downpour to bring out the sunny side of Gaborone, writes Wame Molefhe.
Johannesburg metro police are on high alert after heavy rains were predicted for the city on Thursday.