The Health Department said that 30,186 COVID-19 tests were conducted in the country in the past 24 hours.
The National Institute for Communicable Diseases said that more people had been testing in recent days as cases continue to show an upward trajectory.
The number of new positive results reported on Wednesday evening was 6,372.
Three deaths have been recorded in the last 48 hours.
Earlier this week, government health authorities cautioned that the country should not be alarmed by the recent increases as the data was being analysed.
However, South Africans have been urged not to let their guard down amid relaxed COVID-19 regulations.