"I thought to myself, 'OK, this is it". 'I was free and I just floated there.
He told the paper: "All of a sudden, I felt this huge shove and the next thing I knew it was completely black".
Luckily, he didn't have to spend 40 days inside the belly of the beast, like Jonah the prophet, but was released after about 30 seconds.
Michael Packard, 56, was diving near the Herring Cove Beach in Cape Cod Bay in order to pluck lobsters off the sandy seabed. In Provincetown, Massachusetts, they fearless the cold waters to grab migrating lobsters off a sandy shelf when they emerge from an adjacent deep channel and pause to acclimate to the somewhat warmer water. "Got him on the deck and calmed him down and he goes, "Joe, I was in the mouth of a whale" he goes 'I can't believe it, I was in the mouth of a whale Joe!'"
Packard was pulled out of the water by a crewmate, rushed ashore, and taken to a nearby hospital.
Fearing he was going to die, his thoughts went to his wife and children.
"I think it was a surprise to all involved".
Humpbacks are not aggressive animals, and he said he feels this was likely an accidental encounter while the whale was feeding on fish, likely sand lance. And when they see a whale, keep a good distance.
She added that Packard was unlikely to have been swallowed, as, despite their massive mouths, their throats aren't large enough for a person to fit through.
The whale, identified as a mature female named Valley, was first spotted Monday by a whale watch boat on Stellwagen Bank northeast of Provincetown, according to a statement from the Center for Coastal Studies.
The harbour is a popular area for boaties.
"It's a little like sitting down to a really nice meal, and into your mouth flies a fly", she told CNN.
Thankfully, the whole ordeal had been witnessed by the fisherman's friend Josiah Mayo who quickly retrieved him and called for medical help.
He said the whale emerged from the water and spat him out, leaving him with bruises.
"If you come up to atmospheric pressure, and you've held your breath, you could develop an embolism", Mayo said.
"To get out of a situation like that you have to be a top pro".
"The reason he's still around is because he's smart", Mayo said via CNN.