Supernatural Day
United States, Canada, United Kingdom, Australia
About
Supernatural Day, observed on September 13, celebrates the thrilling world of the television series *Supernatural*. The occasion honors the show’s memorable storylines, suspenseful adventures, and unforgettable characters—especially brothers Sam and Dean Winchester as they face ghosts, monsters, demons, and other mysterious forces.
Fans can mark the day by revisiting favorite episodes, sharing standout moments, discussing the series’ mythology, or enjoying its distinctive blend of horror, humor, family, and friendship. Whether you have followed the Winchesters from the beginning or are discovering the show for the first time, September 13 is a fitting opportunity to celebrate the lasting legacy and dedicated fandom of *Supernatural*.
History
Supernatural Day is observed annually on **September 13** in recognition of *Supernatural*, the American fantasy-horror television series created by Eric Kripke. The date is associated with the program’s premiere on September 13, 2005, when The WB introduced viewers to brothers Sam and Dean Winchester, played by Jared Padalecki and Jensen Ackles. The series followed their travels across the United States as they investigated paranormal cases and confronted ghosts, demons, monsters, angels, and other supernatural forces.
The observance developed from the show’s exceptionally active fan community rather than from a long-established religious or governmental tradition. During its fifteen-season run, *Supernatural* inspired conventions, online discussions, fan art, fiction, podcasts, collectibles, and charitable activities. As the program became a durable part of popular culture, September 13 offered fans a natural annual opportunity to revisit its characters, memorable episodes, mythology, music, and themes. Reference calendars such as National Today have helped give the occasion wider public visibility.
Over time, Supernatural Day has evolved from a simple anniversary-style celebration into a broader appreciation of the series’ cultural impact. Fans may mark September 13 by rewatching favorite episodes, sharing quotations and scenes online, listening to the show’s classic-rock soundtrack, discussing its storytelling, or recognizing the performances of its cast and creative team. For many viewers, the day also recalls the community formed around the series during its long television run, including friendships made through fan events and digital platforms.
The observance is culturally significant because *Supernatural* helped sustain mainstream interest in contemporary American television horror and fantasy while blending folklore with road-trip drama, family storytelling, humor, and serialized mythology. Its fifteen-season history made it one of the longest-running genre dramas in U.S. television, and its influence remains visible in fan communities worldwide. Supernatural Day therefore functions both as a celebration of the series and as an annual reminder of the lasting relationship between popular television and participatory fandom. ([National Today](https://nationaltoday.com/supernatural-day/))