Sara was born in Wales and brought up and educated in London, where she studied medieval and modern history.
She started her career with Capital Radio, contributed regular items to BBC Radio Four, and was a continuity announcer and newsreader for HTV West before joining BBC Wales News. Sara has regularly presented from the Royal Welsh Show and the National Eisteddfod, and has made several series for BBC 2W.
Sara is the daughter of surgeon John M. Edwards M.S.,F.R.C.S.,F.A.C.N.M and actress and broadcaster Gwenyth Petty. She is married to the military historian Dr.Jonathon Riley. Sara's daughter Hannah Elinor Alys, was born on19 March 2006 .
Sara's hobbies are theatre, music, concerts, cookery—she has a professional cooking diploma from La Petite Cuisine culinary school in London—painting, and the countryside, as her family have a farm in West Wales. She also enjoys golf, tennis, horseracing, and riding.
Sara is the Vice Lord-Lieutenant of Dyfed. She is a supporter of The Duke of Edinburgh's Award scheme in Wales and has presented Gold Awards on behalf of HRH The Duke of Edinburgh at St James' Palace. She is also involved with Cancer Research Wales, the British Heart Foundation, is on the council of the University of Wales, Lampeter, a serving Sister of St. John Ambulance, and was on the board of the Wales Youth Agency.