Theresa May will hold talks with Francois Hollande on Britain's plans to quit the European Union when they meet in Paris on Thursday.
The French President will host a working dinner at the Elysee Palace, a day after Mrs May met German counterpart Angela Merkel.
At discussions in Berlin, the Chancellor said Britain should "take a moment" over its plans to sever its ties with Brussels but warned against leaving the negotiations "up in the air".
EU leaders have made clear that they want Britain to swiftly begin its exit from the bloc.
But the German Chancellor said the UK should not rush for the exit door and instead take its time to sort out its priorities.
The Prime Minister confirmed she would not trigger the two-year Article 50 process of leaving the EU before the end of the year.
Mrs May insisted that Germany would "remain a vital partner and a special friend for us" after Brexit.