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Annual observance

Supernatural Day

September 13 Cultural / community observance Updated 2025-12-18

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Overview

Supernatural Day, observed annually on September 13th, is an unofficial fan holiday dedicated to celebrating the long-running American dark fantasy television series *Supernatural*. This date marks the premiere of the show's pilot episode in 2005, and fans worldwide use the day to honor the series' legacy, its beloved characters Sam and Dean Winchester, iconic storylines, and enduring themes of family, sacrifice, and the battle against supernatural evil.

Observed each year on September 13, Supernatural Day invites people to pause, share the story, and bring a little themed joy to their day.

Why it matters: Supernatural Day, celebrated on September 13, honors the legacy of the iconic television series *Supernatural*, which premiered on this date in 2005. This day allows fans to reflect on the show's themes of family, sacrifice, and the fight against evil, while celebrating the enduring impact it has had on popular culture and its dedicated community.

Origin and story

The holiday is celebrated on September 13th because that was the original air date of the *Supernatural* pilot episode in 2005.

*Supernatural* ran for an impressive 15 seasons, totaling 327 episodes, making it one of the longest-running fantasy/sci-fi series in U.S. television history.

Quick facts

  • DateSeptember 13
  • TypeCultural / community observance
  • Great forFriends, Families, Classrooms, Teams

Also on this date

Ways to celebrate

  • Bring the theme into your day—decorate a workspace, cook or bake something inspired by Supernatural, or play music that matches the mood.
  • Share one fast fact about Supernatural Day: The holiday is celebrated on September 13th because that was the original air date of the *Supernatural* pilot episode in 2005.
  • Plan a 10-minute activity that fits the cultural / community observance vibe and make it a mini tradition.
  • Plan something small on September 13: a quick nod to Supernatural Day with friends, family, or coworkers.
  • Add Supernatural Day to your Obscure Holiday Calendar app widget so you get a reminder next year.

Fun facts

  • The holiday is celebrated on September 13th because that was the original air date of the *Supernatural* pilot episode in 2005.
  • *Supernatural* ran for an impressive 15 seasons, totaling 327 episodes, making it one of the longest-running fantasy/sci-fi series in U.S. television history.
  • The iconic 1967 Chevrolet Impala, affectionately known as 'Baby,' was nearly a 1965 Mustang or a 1969 Camaro before series creator Eric Kripke insisted on the Impala.

Sources and attribution

Source not provided.

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FAQ

When is Supernatural Day?
It is observed on September 13 each year.
What is Supernatural Day?
Supernatural Day, observed annually on September 13th, is an unofficial fan holiday dedicated to celebrating the long-running American dark fantasy television series *Supernatural*. This date marks the premiere of the show's pilot episode in 2005, and fans worldwide use the day to honor the series' legacy, its beloved characters Sam and Dean Winchester, iconic storylines, and enduring themes of family, sacrifice, and the battle against supernatural evil.
How do people celebrate Supernatural Day?
Bring the theme into your day—decorate a workspace, cook or bake something inspired by Supernatural, or play music that matches the mood.

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