On 31 May, "Acheron", , , and escorted the carriers "Glorious" and to Norway to cover the final evacuation of British troops from Norway (Operation Alphabet). This was completed by 9 June, whereupon "Acheron" resumed her normal duties with the flotilla. She then operated in the English Channel to escort convoys and was in dock at Portsmouth on 21 June to have a High Angle gun fitted to improve her anti-aircraft defence. Whilst sailing south off St. Catherine's Point on 20 July, she was attacked by German dive bombers, and was damaged by nine near misses.