On 22 May "Rodman" arrived at Plymouth and on 23 May assumed duties as CTU 126.2.1 for Operation Neptune, the naval phase of Operation Overlord the invasion of France. On 24 May, she conducted shore bombardment exercises. Then she waited. On 4 June the convoy B-1, formed, headed out across the English Channel, but then turned back, as the invasion was postponed one day. On 5 June the convoy again formed and headed east, this time continuing on to France and landing reinforcements on Omaha Beach on the afternoon of 6 June. "Rodman", detached on arrival in the assault area, joined TG 122.4 and through 16 June provided gunfire support and patrolled in the Baie de la Seine. Brief respite at Plymouth followed, but on 18 June she returned to the Normandy coast. Back in English waters from 21–24 June, she joined TF 129 on 25 June as that force joined the U.S. IX Army Air Force in supporting the U.S. VII Corps (the 9th, 79th, and 4th Divisions) closing on Cherbourg.