In August 1945, in company with HMS Taciturn, she attacked Japanese shipping and shore targets off northern Bali.

Thorough sank a Japanese coaster and a sailing vessel with gunfire.

On 16 December 1957 Thorough returned to HMS Dolphin, Portsmouth Dockyard, after completing the first circumnavigation by a submarine.

[1] While in Australian waters, on 2 August 1956, she rescued one of the four survivors of the sinking of the 'sixty-miler', Birchgrove Park.

[2][3] She survived the war and continued in service with the Navy, finally being scrapped at Dunston on Tyne on 29 June 1962.