Those fears proved unfounded, with the zoo having weathered the crisis without incident, although some exhibits remained closed to the public on today.
"We are happy to announce that Zoo Miami will be open today," its website said.
The zoo closed on Saturday after heavy rains left some areas of the popular animal park underwater.
Zoo officials said at the time that flooding presented a risk that bears, lions and other big cats might swim out of their enclosures. None did, however.
December is already the second rainiest in Miami history since 1895, according to the US Weather Service.