The South African Weather Service (SAWS) has revised weather warnings from level 6 to level 9.
The Orange Level 9 warning is active on Monday, over the eastern areas of Mopani District Municipality (Limpopo) and Bushbuckridge Local Municipality as well as the Collins Chabane Local Municipality.
SAWS said disruptive rainfall in those areas, could lead to mudslides, rockfalls and soil erosion, and also pose danger to lives and property.
Similar but lesser conditions are also expected over the north-eastern parts of KwaZulu Natal (Level 2).
High fire danger conditions continue over the central and eastern parts of Northern Cape, the Central Karoo of the Western Cape, Sarah Baartman District, Nelson Mandela Bay, parts of the western parts of the Chris Hani District as well as the Walter Sisulu Municipality of the Eastern Cape.