The start of the Champions Trophy Group B fixture between Australia and South Africa in Rawalpindi was delayed on Tuesday by light rain and a wet outfield.
Umpires Chris Gaffaney and Richard Kettleborough inspected the conditions under light drizzle before deciding to delay the toss.
The toss was due to take place at 1:30 p.m. (0830 GMT), but light drizzle meant the covers were still on at that time.
The weather forecast suggested the rain could continue for much of the day.
Fans are seen in the stands as rain delays playReuters
Both sides won their tournament openers against England and Afghanistan, respectively, and are looking to put one foot in the semi-finals with another win at the Rawalpindi Cricket Stadium.
India and New Zealand have qualified for the semi-finals from Group A while title-holders Pakistan and Bangladesh crashed out of the tournament.