On 15 August 1945, while "I-363" was at sea, World War II ended with Emperor Hirohito′s "Jewel Voice Broadcast" announcing the cessation of hostilities between Japan and the Allies. "I-363" arrived at Kure on 18 August 1945 and surrendered to the Allies on 2 September 1945, the same day that Japan formally surrendered in a ceremony aboard the battleship in Tokyo Bay.