Cardiff Street Pastors will be out in the city centre every single night this week in response to recent sex attacks in the capital.
The volunteers, who engage with, and provide assistance to revellers are regularly seen outside bars and clubs on Friday and Saturday nights.
Members of the scheme have decided to extend their services to weeknights following a request from South Wales Police.
The decision, they said, was in response to recent late night sexual attacks in the city and the fact that student freshers week and the Rugby World Cup were currently taking place, boosting the midweek nightlife.