At Saipan again on the 25th, "Twining" conducted shore bombardment off Mutcho Point. Throughout the remainder of June, she continued to operate off Saipan, providing shore bombardment, night harassment and illumination fire, as well as screening transports and engaging enemy aircraft. In Magicienne Bay early on the evening of the 28th, "Twining", witnessed an impressive exchange of fire between marine units on the south side of the bay and Japanese on the north. Later in the evening, Japanese planes attacked, peppering seaward waters with bombs. Observers on board the destroyer watched as shore fire scored a hit on an enemy plane overhead; then saw the plane fall in flames some four miles away. Just before midnight on 30 June, as "Twining" patrolled off Nafutan Point, two enemy planes attempted to make runs on Aslito airfield but were turned back by heavy fire from the destroyer.