"Tide" completed this voyage at Milford Haven, Wales on 10 March and spent the remainder of the month operating out of Falmouth. In April–May, she escorted convoys in British coastal waters and engaged in exercises with minesweepers of the Royal Navy in preparation for the invasion of Europe. In the last week of May, "Tide" made sweeps out of Babbacombe Bay. On 5 June, "Tide" got underway from Tor Bay with Minesweeper Squadron "A", a unit assigned to the Utah Beach area. Later that day, German mines began to take their toll as , a squadron member, went down. As the day wore on, "Tide" swept channels off the Normandy beaches for fire-support ships and continued sweeps the next day, "D-Day". During the night of 6–7 June, she joined other vessels in guarding the Carentan Estuary to prevent the sally of enemy E-boats.