The warning comes following a number of serious robberies accompanied by violence, sexual assault and even murder in the region this year.
Now the FO is advising those hoping to rent a villa to ensure they have adequate security measures in place, including the provision of external security lighting, grills and 24-hour security guards.
It is also recommended that travellers carry a mobile phone with them at all time in case of an emergency.
The most recent attack occurred on Monday when two British female tourists were sexually assaulted and robbed in the Black rocks Dreams guesthouse where they were staying.
Earlier this month a Swedish couple were killed in an apparent robbery although no-one has been charged for the crime.