There are a total of six "Sharknado" films. The series began with "Sharknado," released in 2013, followed by "Sharknado 2: The Second One" in 2014, "Sharknado 3: Oh Hell No!" in 2015, "Sharknado 4: The 4th Awakens" in 2016, "Sharknado 5: Global Swarming" in 2017, and the final installment, "The Last Sharknado: It's About Time," in 2018. The films are known for their over-the-top premise and campy humor, gaining a cult following over the years.

As of October 2023, there has been no official announcement for a "Sharknado 7." The last installment, "The Last Sharknado: It's About Time," was released in 2018 and was marketed as the final chapter of the series. While the franchise has garnered a cult following and there have been discussions about potential spin-offs or new projects, nothing concrete has been confirmed. Fans of the series should stay tuned for any updates from the creators or production companies involved.

Determining the "best" Sharknado movie is subjective and varies by viewer preference. However, many fans consider "Sharknado 2: The Second One" (2014) to be the standout installment. It features a larger budget, more elaborate special effects, and a comedic tone that capitalizes on its predecessor's campiness. The film also introduces celebrity cameos and takes the chaos to New York City, enhancing its appeal. Overall, while each film has its charm, "Sharknado 2" is often regarded as the most entertaining entry in the series.

"Sharknado" is often considered a "dumb" movie due to its over-the-top premise of a tornado filled with sharks wreaking havoc in Los Angeles. Its intentionally campy style, low-budget effects, and absurd plot have led to it being embraced as a cult classic. Critics and audiences appreciate it for its humor and entertainment value, often viewing it as a parody of disaster films. While it's not a serious cinematic achievement, its charm lies in its outrageousness and willingness to be silly.