The official release date for the third and final season of The Summer I Turned Pretty is July 16, 2025. Prime Video confirmed that this highly anticipated installment will consist of 11 episodes, making it the longest season of the series to date. The series will launch with a special two-episode premiere on Wednesday, July 16, followed by a weekly release schedule that concludes with the series finale on September 17, 2025.

As the screen adaptation of Jenny Han’s best-selling novel "We’ll Always Have Summer," this season serves as the definitive conclusion to the love triangle between Isabel "Belly" Conklin and the Fisher brothers, Conrad and Jeremiah. After the emotional cliffhanger of Season 2, which saw Belly choosing a relationship with Jeremiah while Conrad walked away to focus on his studies at Stanford, the final season picks up the narrative as the characters transition from teenagers into young adulthood.

Official Episode Release Schedule for the Final Season

Prime Video has shifted the release strategy for Season 3 to maximize the summer viewing window, moving from the traditional Friday release to a Wednesday slot. This 11-episode journey is designed to span the entire mid-to-late summer period of 2025.

The release calendar is structured as follows:

  • July 16, 2025: Episode 1 and Episode 2 (Premiere Event)
  • July 23, 2025: Episode 3
  • July 30, 2025: Episode 4
  • August 6, 2025: Episode 5
  • August 13, 2025: Episode 6
  • August 20, 2025: Episode 7
  • August 27, 2025: Episode 8
  • September 3, 2025: Episode 9
  • September 10, 2025: Episode 10
  • September 17, 2025: Episode 11 (Series Finale)

This extended count of 11 episodes—compared to seven in Season 1 and eight in Season 2—allows the showrunners to delve deeper into the college-years narrative and provide a more comprehensive resolution to the complex family dynamics at Cousins Beach.

What to Expect from the Season 3 Plot

Season 3 is heavily influenced by the third book in the trilogy, "We’ll Always Have Summer." The story experiences a significant time jump, moving forward approximately two years from the events of the Season 2 finale.

Belly’s Junior Year at Finch College

The season finds Belly Conklin in her junior year at Finch College, the same school Jeremiah Fisher attends. In our analysis of the source material, this period represents Belly’s first real attempt at a long-term, stable relationship outside the immediate shadow of Susannah’s death. She is fully immersed in college life, being part of a sorority and navigating the social pressures of university athletics and Greek life. The "Experience" of these college years is central to the season's tone, shifting from the nostalgia of childhood summers to the weight of adult decisions.

The Return of Conrad Fisher

While Belly and Jeremiah have spent two years building a life together, Conrad Fisher has been largely absent, attending Stanford University in California. However, his return to Cousins Beach and his involvement in a major family event act as the catalyst for the season's primary conflict. The dynamic between the brothers remains strained, with unresolved feelings bubbling to the surface as they are forced to share the same space once again.

The Cabo San Lucas Controversy from the Books

Fans of the book series are eagerly awaiting (and perhaps dreading) how the show will handle the "Cabo" plotline. In the novels, a spring break trip to Cabo San Lucas by Jeremiah leads to a rift in his and Belly's relationship, followed by a sudden proposal that shocks both families. In the television adaptation, showrunner Jenny Han has historically stayed true to the emotional beats of the books while modernizing the context. We expect the Cabo incident to be a pivotal moment in Episode 4 or 5, setting the stage for the dramatic final act of the series.

New and Returning Cast Members

The core trio—Lola Tung as Belly, Christopher Briney as Conrad, and Gavin Casalegno as Jeremiah—all return to conclude their characters' arcs. Joining them are several new series regulars and recurring characters who flesh out the college environment and the extended social circles of the Fishers and Conklins.

  • Isabella Briggs and Kristen Connolly: Both have joined as series regulars for Season 3. While their specific character names were initially kept under wraps, reports indicate they play significant roles in the college setting and the adult professional circles that Belly and Taylor begin to enter.
  • Sofia Bryant as Anika: Anika is introduced as Belly’s college roommate at Finch, providing a new perspective on Belly’s life that isn't tied to the history of Cousins Beach.
  • Lily Donoghue as Lacie Barone: As a sorority sister of Taylor’s, Lacie represents the new social pressures Belly faces during her junior year.
  • Returning Favorites: Sean Kaufman (Steven), Rain Spencer (Taylor), Jackie Chung (Laurel), and David Iacono (Cam) are all confirmed to return. Despite the character Susannah Fisher passing away in Season 2, Rachel Blanchard is expected to appear in flashback sequences, which remain a staple of the show’s storytelling method.

The Fisher Brothers: Resolving the Love Triangle

The central question of the series—Team Conrad or Team Jeremiah—reaches its final resolution this season. Unlike previous seasons where the choice felt like a temporary shift in teenage feelings, Season 3 presents it as a life-defining decision.

Jeremiah represents the "golden boy" of Belly's present—the one who was there for her during her darkest moments and who offers a future that is bright, social, and stable. However, the show has consistently hinted that Conrad remains Belly's "soulmate" in the cosmic sense, despite his emotional unavailability in earlier years. The 11-episode structure provides ample room to show Conrad’s personal growth and his efforts to finally communicate his feelings effectively, setting up a heartbreaking choice for Belly as she prepares to enter adulthood.

Why Season 3 is the End of the Trilogy

The decision to conclude The Summer I Turned Pretty with its third season aligns with the structure of Jenny Han’s original book trilogy. By the end of the third book, the narrative reaches a natural conclusion that sees the characters settled into their adult lives.

Amazon MGM Studios and showrunners Jenny Han and Sarah Kucserka have emphasized that they wanted to honor the source material's ending rather than artificially extending the series and diluting the emotional impact of the finale. The themes of "first love" and "growing up" are inherently tied to the transition out of adolescence, and by the end of Season 3, Belly, Conrad, and Jeremiah are no longer the children who first arrived at the beach house in Season 1.

The Soundtrack Legacy and Taylor Swift

One of the defining features of The Summer I Turned Pretty has been its curated soundtrack, most notably its association with Taylor Swift. In previous seasons, the show featured debut versions and "Taylor’s Version" tracks that punctuated key emotional moments (such as "The Way I Loved You" and "August").

For Season 3, the musical stakes are even higher. Rumors within the production suggests that the final season will feature music from Swift’s "The Tortured Poets Department" and potentially unreleased "Vault" tracks from her remaining re-records. The use of music in this series isn't just background noise; it acts as a narrative device that reflects Belly’s internal monologue, making the Season 3 soundtrack one of the most anticipated aspects of the 2025 release.

Everything Known About the Post-Series Feature Film

In a move that surprised many fans, a feature-length film was announced to follow the series finale on September 17, 2025. This film is intended to serve as a direct continuation of the series finale, potentially exploring the "epilogue" period of the books in greater detail.

While the series finale will provide a definitive answer to the love triangle, the film is expected to focus on the long-term future of the Conklin and Fisher families. This allows the show to avoid a rushed ending and gives the characters a cinematic send-off that matches the global scale the franchise has achieved.

Conclusion

The Summer I Turned Pretty Season 3 arrives on July 16, 2025, bringing the beloved coming-of-age story to its emotional peak. With 11 episodes scheduled throughout the summer and a series finale on September 17, fans will finally see Belly make her ultimate choice between Conrad and Jeremiah. By incorporating the challenges of college life, the return of past loves, and the inevitable growth that comes with adulthood, the final season promises to be the most impactful yet. Whether you are Team Conrad or Team Jeremiah, the conclusion of this trilogy marks the end of an era for Prime Video’s most popular young adult drama.

FAQ

What time will The Summer I Turned Pretty Season 3 episodes be released?

Episodes typically drop on Prime Video at 12:00 AM GMT. For viewers in the United States, this often means the episodes are available at 8:00 PM ET or 5:00 PM PT on the evening before the official release date (e.g., the evening of July 15 for the premiere).

Is Season 3 definitely the last season?

Yes, Prime Video has marketed Season 3 as the "final season" of the series. However, a follow-up feature film has been announced to continue the story beyond the finale.

How many episodes are in The Summer I Turned Pretty Season 3?

There are 11 episodes in the third season, which is three more than the second season and four more than the first.

Which book is Season 3 based on?

Season 3 is based on the third and final book in Jenny Han's trilogy, titled "We’ll Always Have Summer."

Will Taylor Swift have new music in Season 3?

While not officially confirmed by the singer herself, the show has a long-standing partnership with Taylor Swift's team. It is highly expected that several of her tracks will feature prominently in the final season's key scenes.

Does Belly end up with Conrad or Jeremiah in the books?

In the original book "We’ll Always Have Summer," Belly ultimately ends up with Conrad Fisher, though the show has been known to make slight adjustments to character motivations and specific plot points.