It weakened to a four after wreaking "widespread damage" on the island but is now packing maximum sustained winds of 265km/h (165mph) again.
The storm is moving roughly along the same track as Irma, this season's other category five hurricane.
At least one person was killed and two others are missing in Guadeloupe.
Local officials said one person was killed by a falling tree in the overseas French territory, while at least two more people were missing after their ship sank near Desirade, the easternmost island in the archipelago.
