Roberts provided bombardment support during Operation Torch in North Africa, where she was damaged by two 500 kg (1,100 lb) bombs in the Battle of Béjaïa. She was repaired in time to support Operation Husky (the invasion of Sicily) and the Allied landings near Salerno (Operation Avalanche). During the D-Day landings, she was controlled from the headquarters ship HMS Largs also positioned off Sword beach. She also took part in the Walcheren operations.

In July 1945, Roberts departed the United Kingdom for the Indian Ocean to support Operation Mailfist, the planned liberation of Singapore. She was near Port Said at the time the Japanese surrender on 15 August, but was not recalled until 11 September by which time she had reached Kilindini Harbour in Kenya. She eventually reached Plymouth on 22 November.

Roberts was sold for scrap shortly after the war,[citation needed] but hired back by the navy as an accommodation ship at Devonport until 1965. She was sold for scrap again in July 1965, finally berthing at Inverkeithing for break up in early August.