These measures include a 7pm curfew, a 10km travel restriction and the closure of all non-essential shops. In addition to this, schools and nurseries will be closed for three weeks from 12 April.
France has one of the highest infection rates in Europe – more than seven-times that of the UK – and is in the middle of a third major wave that threatens to be the worst yet.
The French president had sought to avoid a third large lockdown since the start of the year, gambling that if he could steer France out of the pandemic without locking the country down again he would give the economy a chance to recover from a deep slump.
French president Emmanuel Macron has announced stricter lockdown measures in response to a continuing surge of Covid-19 cases in the country.
In a televised address on Wednesday evening, Mr Macron said confinement measures that were already in place in Paris and 19 other departments would be extended nationwide for four weeks from Saturday.
“We must make an additional effort,” he said. “No region is safe from this virus.”
But the former investment banker’s options have narrowed as more contagious strains of the coronavirus sweep across France and much of Europe.
Daily new infections have doubled since February to nearly 40,000. On Tuesday, the number of Covid-19 patients in intensive care breached 5,000, exceeding the peak hit during a six-week-long lockdown in the autumn. Thousands of school classes have been closed.
“We must not resort to panic,” he said. “We have not lost control.”
Parliament will vote on Thursday on the measures announced by Macron. “That tells you steps will be taken on a national level,” a government source said.
A nationwide nightly curfew has been in place since December and restaurants, bars and cinemas have been closed for months. Ten days ago, the government shut non-essential stores and limited people’s movements in Paris and other regions ravaged by the virus.
Schools have been kept open since the first lockdown ended, but Paris Mayor Anne Hidalgo said it was time to close them, with the virus spreading through classrooms.
Macron had hoped France’s Covid-19 vaccine campaign would reduce the numbers falling gravely ill. But the vaccine rollout is only now finding its stride three months in, with just 12 per cent of the population having received at least one vaccination dose. This compares to more than 45 per cent in the UK.