At the start of 1944, "Warramunga" helped cover the Landing at Saidor, before leaving Task Force 74 for refits in Sydney. After rejoining the task fore at the start of February, "Warramunga" participated in amphibious landings in the Admiralties, at Tanamera Bay, Wakde-Sarmi, and Biak. From May to July, the destroyer was assigned to patrol and escort duties. On 22 July, "Warramunga" and the cruiser sailed to Sydney for refits and leave. Returning in August, the destroyer was involved in the Morotai landings on 15 September. "Warramunga" was part of the covering force for the Leyte landings, and after "Australia" and were damaged during the operation, escorted the two cruisers back to port for repairs.