If you’ve spent any time scrolling through Marvel fan theories, you know that tracking a superhero's age is like trying to catch a greased pig. It’s messy. For Miles Morales, the Brooklyn teen who took over the mantle of Spider-Man, the question of when is miles morales birthday has a few different answers depending on if you’re a comic book purist, a movie buff, or a gamer.
Honestly, it’s kinda confusing.
Most of the internet has settled on August 3rd as the big day. Why? Because that’s the day the real world first met him. Miles made his debut in Ultimate Fallout #4 on August 3, 2011. Since then, Sony and Marvel have leaned into this date for social media celebrations. But if you look at the actual stories, things get a little weirder.
The Spider-Verse Birthday Dilemma
In the Spider-Verse movies, Miles’ age is a major plot point. He starts as a 13 or 14-year-old middle schooler and hits his stride as a 15-year-old sophomore in Across the Spider-Verse. Sony Animation basically canonized the August date on Instagram, which fits the "garden party" vibe we see early in the second film. It’s summer. It’s hot. People are on roofs.
But wait.
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If you’re a gamer playing the Insomniac Spider-Man series, that August date starts to feel "sus," as the kids say. In the games, Miles is 15 during the first adventure and 17 by the time his solo game and the sequel roll around.
The math doesn't quite work for August.
In the Miles Morales standalone game, which is set during a snowy NYC Christmas, his mom Rio gives him a scavenger hunt left by his late father. One of the notes literally says "Happy LATE Birthday, Mijo." This implies his birthday happened shortly before December—likely in October or November. If he were an August baby, calling a December gift "late" would be the understatement of the century.
Why Does the Date Keep Moving?
Comic book time is "sliding time." Characters rarely age in real-time because if they did, Spider-Man would be collecting social security by now.
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- The Meta Reason: August 3rd is his "birth" into pop culture.
- The Narrative Reason: Writers need him to be a specific age for school drama.
- The Multiverse Reason: Different Miles, different birthdays.
Basically, the Miles from Earth-1610 (the comics) might not blow out his candles on the same day as the Miles from the movies or the PlayStation universe.
Miles Morales Birthday in the Comics
In the actual Marvel Comics run, specifically Miles Morales: Spider-Man #10 (2019), Miles celebrates a birthday that gets interrupted by villains. This issue was released in September, but the story features a bit of a time jump. Writer Saladin Ahmed actually turned the "how old is Miles" question into a running gag in that issue. They purposefully avoid giving a hard number because once you lock a character into a birth year, you start a countdown to them becoming an adult, and Marvel loves keeping Miles in that "relatable teen" sweet spot.
Interestingly, Marvel celebrated their 81st anniversary with a special birthday variant of Miles Morales: Spider-Man #18. While that was technically celebrating the company’s birth, Miles was the face of the party. It solidified him as the "birthday representative" for the modern era of heroes.
The "Decembruary" Mystery
If you’re a hawk-eyed fan who watched Into the Spider-Verse frame-by-frame, you might have seen his test paper. On the top right, the date is written as "Decembruary 2nd."
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Yeah. Not a real month.
Fans used to think this was a clue, but it turns out Miles was just trying to fail his test on purpose to get out of Visions Academy. He was being a "bad student" for the aesthetic. So, "Decembruary" isn't a secret birthday month; it's just a 14-year-old being dramatic.
Summary for the Timeline Obsessed
If you need a date for your calendar, stick with August 3rd. It’s the one Sony uses and the one that honors Brian Michael Bendis and Sara Pichelli creating the character back in 2011. Just don't be surprised if the next movie or game suggests he's a Scorpio or a Libra instead.
To stay up to date on Miles' journey, the best thing you can do is check out the latest "Legacy" numbering issues in the comics, specifically starting around issue #300, where Marvel recently celebrated his long-term impact on the 616 universe. You can also track the upcoming Beyond the Spider-Verse news, which is expected to clarify more about his age and timeline as the trilogy wraps up.