Weal’s appointment to the end of the season will enable the club’s head of goalkeeping, Alessandro Barcherini, to step up and assume a wider-ranging first-team coaching role.
Barcherini will help fill the void created by Mike Dodds’ departure in order to take over as the head coach of Wycombe Wanderers.
Joining Sunderland from Carlisle United on a short-term contract, Weal has previously undertaken roles with Norwich City, Nottingham Forest, Huddersfield Town, Notts County – where he coached Anthony Patterson – and MK Dons.
Sunderland head of coaching, Stuart English said: “We are delighted to welcome Tom to our coaching team and although he will predominantly work with our senior goalkeepers, we are looking forward to seeing what fresh ideas and perspectives he can bring to our club.
“Throughout his time at SAFC, Alessandro’s influence across, analysis, coaching and match preparation has grown and following Mike Dodds’ departure, these changes will provide important continuity for Regis and our playing squad.”