But it says that those in “vulnerable areas” close to the coast and on hill tops should move to a safer place.
Emergency accommodation for those already made homeless has been set up at the national football stadium.
The government has warned that heavy rains are forecast for the next six days
An unknown number of people have been injured and the government says it is deploying extra health staff.
The security services have rescued people in the coastal areas where the informal settlements have been hardest hit.
The country’s main referral hospital, the Connaught Hospital, has also been affected as operations have been cancelled because the theatre has been flooded.
The government says that the only people exempted from the stay-at-home order, apart from those working in essential services, are school children who are currently sitting their public exams.