The police search and rescue operation first began on Tuesday, April 23 after the man made a call over maritime radio around 10am, stating he was having a medical event.
MetService reported boating conditions at Raglan Entrance on the day were average, possibly affected by light-fair winds.
Police reported the man was fishing alone and a short time after he made the radio call, his emergency beacon was activated.
Resuscitation attempts were unsuccessful and the person died at the scene.
Maryana Garcia is a Hamilton-based multimedia reporter covering breaking news in Waikato. She previously wrote for the Rotorua Daily Post and Bay of Plenty Times.