That is incredibly almost two-and-a-half stone heavier than the 185lbs he weighed in before facing Sean Strickland in July.
Pereira is currently back in Brazil at the moment as he is spending some time with his family following his stunning first-round knockout of Strickland last month.
And it appears he has been enjoying himself, as he posted on his Instagram account with a story of him weighing himself on Wednesday.
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The former two-weight world champion, 35, who holds two wins over Adesanya in the world of kickboxing, told his followers he is currently walking around at 105.6 pounds.
Pereira, 35, is scheduled to face Adesanya, 32, for the middleweight title in the main event of UFC 281 at New York’s iconic Madison Square Garden on November 12.
‘Poatan’, whose nickname literally translates to ‘Stone Hand’, has made a living fighting to provide for his family after a tough childhood.
During an appearance on The MMA Hour, he said: “I had a bit rough and difficult life.
“I started working in a tire shop when I was 12, so my childhood was cut off early because I had to work, so I didn’t watch many cartoons, movies and series.
“Sometimes you’ll ask me something and I won’t know how to answer and I’ll just say I didn’t watch it. Some people will say I’m an arrogant person, but my childhood was different. Most of my childhood was busy with work and trying to help provide to my family.
“Sometimes I see [Adesanya] doing cartoon stuff that, to me, doesn’t make any sense, because I don’t even know who Frozen is. I’m not being arrogant, I’m not being ignorant – I just didn’t even know up until that point who Frozen was. If you’re going to freeze me, I guess it’s related to ice? I don’t know. I wasn’t getting it.
“First, I don’t speak English. And even if I did, the look on my face would be the same, because he said he would make [the Jared Cannonier] fight look easy and he didn’t. Goes there and it’s something else.
“I don’t [do that]. People already have expectations. I lay low, stay silent. ‘Alex, are you going to knock him out?’ ‘No, I just wanna do a good fight.’
“I go there and knock him out and people be like, ‘Damn, awesome.’ People start to see who Alex Pereira is.
“This Frozen stuff, Naruto, Dragon Ball Z – to me, makes no sense whatsoever. People that understand and believe in the cartoon might be influenced, ‘Oh, he’s going to freeze him.’ He’ll freeze me like the cartoon. Is he? But, how?
“I don’t know how he’s going to freeze me. Is he putting me in the fridge? Is that it? I don’t know how this cartoon works.”