Paris has shut down its underground metro line as water levels in the river Seine keep rising following days of rain.
Staff at the Louvre museum have been told the venue will close tomorrow.
Floods have inundated parts of France, Germany and Belgium, killing five people as rivers broke their banks from Paris to Bavaria.
More rain is forecast for the coming days in some regions, and authorities in Paris predict the Seine River will not reach its peak until tomorrow.
Tourist boat cruises have been cancelled and several roads in and around the capital are under water, further disrupting travel on top of train strikes this week.
Days of heavy rains have caused exceptional delays to the French Open tennis tournament in Paris and may force it into a third week.
The rain that has fallen across Western Europe this week has already killed five people, including an 86-year-old woman who died in her flooded home in Souppes-sur-Loing, south-east of Paris.
In Germany, four people have been confirmed killed in the flooding, which swept through the towns of Simbach am Inn and Triftern near the Austrian border. Others have been reported missing.
The southern German state of Bavaria, which has been badly hit by the rains, has promised quick financial help to residents in areas near the Austrian border hit by flooding this week.
According to comments carried by the dpa news agency, Bavaria's governor, Horst Seehofer, has pledged "quick and unbureaucratic help", and that his state "won't abandon those affected, some of whom have lost their whole homes".
The waters in Bavaria have receded, and disaster relief crews are on the scene helping to clear the wreckage, while helping to prepare for more possible flooding. However, the respite may be short-lived as there are warnings of more storms.
In France, authorities say that areas along the Loing River, a tributary of the Seine, had seen waters rise to levels unseen since 1910, when a massive flood swamped the French capital.
For the second day, emergency workers evacuated residents of the town of Nemours, about 50 miles south of Paris, the hardest hit site in France.
In the southern Paris suburb of Longjumeau, firefighters drove in a Land Rover through flooded streets, telling trapped residents to wait for help. On the town's main street, Avenue Francois Mitterrand, shops were closed and shopkeepers tried to sweep water out of their shops.
France's meteorological service said severe flood watches are in effect in two regions in the Paris area: Loiret and Seine-et-Marne. Eight more regions, including three on the German, border, face flood warnings as well.
Belgium also endured a fourth day of heavy rain, with flooding reported in several areas across the country.
After widespread flooding hit northern Antwerp and the west of Flanders early in the week, waters kept rising in eastern areas around Limburg and Liege. Several neighbourhoods have had to be evacuated as cellars flooded and streets were submerged in overflowing creeks and rivers.
One major train line linking eastern Limburg to the capital had to be temporarily suspended. No deaths or injuries have been reported so far in Belgium. More rain is expected later.