On the 19 October 1944, "Sigourney" shelled Red and White Beaches to cover underwater demolition teams reconnoitering the landing sites near Dulag and Tacloban. She and "Cony" (DD-508) remained in the area while the remainder of TG 77.2 withdrew to the south to cover the approaches to the Leyte Gulf through Surigao Strait. The two destroyers fired night harassing and interdiction fire on beaches, roads, and installations. On the 20th, they bombarded the beaches until H-hour and then provided call-fire support until the 24th when word was received from the Commander, 7th Fleet, to prepare for a night engagement. "Sigourney", "Aulick" (DD-569), and "Welles" (DD-628) were in the van as Attack Section 2 of DesDiv "X-Ray" which would screen the battle line consisting of six battleships. In the screening position, they did not take part in the torpedo attacks on the Japanese fleet launched by other American destroyers. On 29 October, "Sigourney" withdrew from Leyte and returned to Seeadler Harbor, arriving on 3 November.