 In May 1946 the flotilla patrolled the eastern Mediterranean to intercept ships carrying illegal immigrants to Palestine.In April 1947 "Wigtown Bay" returned to HMNB Devonport, and was decommissioned in May.Laid-up in reserve she was used as an accommodation ship for Reserve Fleet personnel, but was refitted in 1948 and 1951 to ensure that her operational availability was maintained.