The Definitive Answer: How Many Seasons Of The Summer I Turned Pretty Are There? (Plus The Shocking Movie Update)

The question of "how many seasons of The Summer I Turned Pretty are there?" has a definitive and now final answer. As of the current date, December 10, 2025, the beloved Prime Video series has officially concluded its run with a total of three seasons, perfectly adapting the entire literary trilogy by author Jenny Han.

The final season, which premiered in July 2025, wrapped up the iconic love triangle between Belly, Conrad, and Jeremiah, delivering a conclusive ending for fans. However, the story isn't quite over. In a massive surprise announcement, the creators confirmed that while there will be no Season 4, the franchise will return with a feature-length film as a sequel to the series, cementing its legacy as a multi-season phenomenon.

The Complete Season Breakdown: From Debut to Final Bow

The journey of Isabel "Belly" Conklin and the Fisher brothers—Conrad and Jeremiah—spanned three pivotal summers, each one chronicled in a season of the Prime Video hit. The show's structure was closely tied to its source material, a trilogy of novels by Jenny Han, who also serves as the series creator and showrunner. This three-season framework was intentional, allowing the narrative to follow Belly's emotional growth and her complicated romantic life over three distinct phases.

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Season 1: The Summer I Turned Pretty (2022)

• Source Material: The Summer I Turned Pretty (Book 1)
• Episode Count: 7 Episodes
• Key Plot Points: The season introduces Belly (Lola Tung) during the pivotal summer she turns 16. Her annual trip to Cousins Beach with her mother, Laurel Park (Jackie Chung), and the Fisher family—Susannah (Rachel Blanchard), Conrad (Christopher Briney), and Jeremiah (Gavin Casalegno)—takes a dramatic turn as her childhood crush on Conrad intensifies and a new connection with Jeremiah blossoms. The season ends with Belly choosing Conrad, only for the joy to be immediately undercut by Susannah’s cancer diagnosis.

Season 2: It's Not Summer Without You (2023)

• Source Material: It's Not Summer Without You (Book 2)
• Episode Count: 8 Episodes
• Key Plot Points: This season deals with the fallout of Susannah Fisher’s death. The summer house in Cousins is at risk of being sold, forcing Belly, Conrad, and Jeremiah to reunite amidst their grief and fractured relationships. Belly and Conrad’s relationship struggles under the weight of loss, and the season sees Belly and Jeremiah grow closer. The emotional arc culminates in Belly choosing Jeremiah, believing Conrad needs time to process his grief alone.

Season 3: We'll Always Have Summer (2025) - The Final Season

• Source Material: We'll Always Have Summer (Book 3)
• Episode Count: 11 Episodes
• Key Plot Points: Season 3 was the longest and most anticipated, premiering on July 16, 2025, and concluding on September 17, 2025. This installment was tasked with delivering the ultimate resolution to the central love triangle. It explores Belly and Jeremiah's relationship, Conrad's internal struggles, and the final choices that define Belly's future. The increased episode count allowed for a more detailed adaptation of the final book's complex emotional landscape and time jumps.

Why There Will Be No Season 4 (And What Comes Next)

The news that The Summer I Turned Pretty Season 3 was the final season came as a surprise to some fans, but it was a decision rooted in the source material. Author and showrunner Jenny Han has consistently stated that the story was always intended to be a three-part journey, mirroring the three books in her trilogy.

Han explained that "Three books, three seasons. It feels right to me," emphasizing her commitment to respecting the original narrative arc. The show's success was immense, but the creative decision was to end the series on a high note that provided closure, rather than stretching the plot beyond the source material.

However, the ending of the series on Prime Video was quickly followed by an even bigger announcement that ensures the story of Cousins Beach is not truly over.

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The Confirmed Sequel: The Summer I Turned Pretty Movie

Immediately following the conclusion of the Season 3 finale on September 17, 2025, Prime Video and Jenny Han announced a sequel project: a feature-length film.

This movie is confirmed to be a continuation of the television series, not a reboot or a spin-off. While specific plot details remain scarce, the film is expected to serve as a true epilogue, revisiting Belly, Conrad, and Jeremiah (and potentially Belly's brother Steven Conklin, played by Sean Kaufman) after the events of the final season.

The announcement has generated massive buzz, as it allows the franchise to explore the characters' lives beyond the scope of the original trilogy, offering an even deeper look at their futures and the enduring magic of Cousins Beach.

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Key Cast and Characters Who Defined the Trilogy

The success of the series is inseparable from its talented ensemble cast, who brought Jenny Han’s beloved characters to life. The main cast returned for all three seasons, forming the core of the show's emotional depth and popularity. This list highlights the essential entities that made the show a global phenomenon:

• Lola Tung as Isabel ‘Belly’ Conklin: The protagonist whose coming-of-age story and complex love life drive the entire series.
• Christopher Briney as Conrad Fisher: The older, brooding, and academically-focused brother, representing Belly's first and most intense love.
• Gavin Casalegno as Jeremiah Fisher: The younger, charming, and more outgoing brother, who offers Belly a different, more immediate kind of connection.
• Sean Kaufman as Steven Conklin: Belly’s older brother, whose own summer romances and college pressures provide a parallel storyline.
• Jackie Chung as Laurel Park: Belly’s mother, an author whose best friend was Susannah, and whose own journey of grief and new romance is a key adult storyline.
• Rachel Blanchard as Susannah Fisher: Conrad and Jeremiah's mother, whose warmth and eventual illness are central to the emotional core of the first two seasons.
• Rain Spencer as Taylor Jewel: Belly’s best friend, who becomes a more significant part of the Cousins Beach dynamic.
• David Iacono as Cam Cameron: Belly's sweet, early-season love interest.
• Elsie Fisher as Skye: A new, non-binary character introduced in Season 2, adding a fresh dynamic to the group.
• Kyra Sedgwick and Eliza Shin: Notable additions in Season 3, further expanding the world of the Conklins and Fishers.

The natural chemistry between the main trio—Lola Tung, Christopher Briney, and Gavin Casalegno—was a major factor in the show's massive streaming numbers, making the "Team Conrad vs. Team Jeremiah" debate one of the most talked-about topics on social media throughout its entire run. The show’s ability to generate such passionate engagement proved that the story of Belly, Conrad, and Jeremiah resonated deeply with a new generation of viewers, ensuring that even with the series concluded, the world of The Summer I Turned Pretty will live on in the upcoming feature film.