Mr Dumor died on Saturday, January 18, 2014 at his residence in the United Kingdom capital.
The funeral service is scheduled to be held at St Martin-in-the-Fields near Trafalgar Square at 11:00am.
It is expected to be attended by close friends of the late broadcaster and his colleagues at BBC.
Another – which is likely to be a state funeral – is expected to be held in Ghana after Saturday’s ceremony in London.
Mr Dumor was survived by a wife – Kwansema Dumor – and three children.