The river Seine in Paris has stabilized, but it will take days for the water levels to return to normal, French Environment Minister Segolene Royal said on Saturday.
The floods, the worst the French capital has seen since 1982, killed four people and forced thousands from their homes.
The famous Louvre and Orsay museums were also forced to move scores of artworks and precious artifacts to safety and traffic was disrupted in several areas.
The Seine river rose to about 6.10 meters (20.0 ft) on Saturday morning and was now stable, authorities said. In 1982, the river rose to 6.18 meters.
"The decrease in the flood level will be slow, which I confirmed yesterday. It will depend on the meteorological conditions in the coming days. In the current situation, you must know that the ground is saturated with water and any new precipitation could lead to strong reactions in the flow of water, and also to layers of earth being brought to the surface," Royal told a news briefing.
She added that Paris got off relatively easy, with only a few buildings taking on water.