On 8 July, "Melvin" sailed for Eniwetok as part of the screen of the transports carrying troops to Guam, she then screened transports and oilers from 22 July to 7 August. After preparations at Guadalcanal, from 8–21 September she took part in the capture and occupation of the southern Palau Islands before joining TG 33.19 for the occupation of Ulithi. After escorting LSTs to Hollandia, she arrived at Manus Island to prepare for the invasion of Leyte, Philippines.