The weather office on Tuesday issued a warning for disruptive rain over KwaZulu-Natal.
It said widespread showers and thundershowers are expected in KZN in the upcoming days, starting from Tuesday.
The South African Weather Service (SAWS) is predicting isolated showers from Tuesday and thunderstorms later in the week.
The rain is expected to start on Tuesday over the southern parts of the province and spread to the north during the day.
SAWS said widespread showers and thundershowers can be expected over the southern and western parts of the province from Wednesday and will continue into Thursday.
The areas expected to be affected include Abaqulusi, Alfred Duma - Indaka, Alfred Duma - Ladysmith, Dannhauser, Dr N. Dlamini-Zuma - Underberg, eDumbe, eMadlangeni, Endumeni, eThekwini, Greater Kokstad, Impendle, Ingwe, Inkosi Langalibalele - Estcourt, Inkosi Langalibalele - Sobabili, M_Ethekwini, Mkhambathini, Mpofana - Giants Castle, Mpofana - Mooi River, M_Ray Nkonyeni, Msinga, M_Umdoni, Newcastle, Nquthu, Okhahlamba, Ray Nkonyeni, Richmond, The Msunduzi, Ubuhlebezwe, Umdoni, uMngeni, uMshwathi, UMuziwabantu, Umvoti, Umzimkhulu and Umzumbe.
Mild to heavy rain is expected until Wednesday next week.
SAWS said localised flooding of susceptible settlements, both formal and informal, roads, low lying areas, and low-lying bridges is possible.
People have been urged to stay indoors and off roads if possible.