The first Twenty20 international between South Africa and Australia at St George's Park was abandoned because of rain without a ball bowled on Sunday.
Rain fell steadily for most of the day, although at one stage the covers were removed and the pitch was rolled while match officials and some team members looked on. But a heavy shower ended any chance of play.
The three-match series provides both teams with an opportunity to prepare for the World Twenty20 in Bangladesh later this month.
The second match is scheduled for Durban on Wednesday and the final match is in Centurion on Friday.