The season (and series) finale of The Summer I Turned Pretty is set to air on Wednesday, September 17, 2025, on Prime Video, dropping at midnight PT / 3 a.m. ET.

Quick Scoop: Finale Date & Time

  • Finale date: Wednesday, September 17, 2025.
  • Platform: Prime Video (streaming only).
  • Release time (U.S.):
    • 12:00 a.m. PT.
* 3:00 a.m. ET.

For international fans, outlets list equivalent time-zone drops (for example, 8 a.m. BST and 9 a.m. CEST on September 17).

Season 3 Context (No Big Spoilers)

Season 3 is the final chapter of Belly’s story, and the September 17 episode is Season 3, Episode 11, wrapping up the entire series. The finale follows a run of weekly episodes that started in mid-July and built up the Paris storyline, Belly’s future, and the end of the love triangle.

A few key points fans are buzzing about in forums and coverage:

  • Belly’s choice between Conrad and Jeremiah comes to a head.
  • Conrad heads to Paris, creating a last-minute emotional shake-up.

Episode Schedule Snapshot (Season 3)

Many viewers search for “when is the season finale of The Summer I Turned Pretty ” after binging earlier episodes. Here’s the tail end of the Season 3 rollout:

  • Episode 8: August 27
  • Episode 9: September 3
  • Episode 10: September 10
  • Episode 11 (finale): September 17

The show stuck to a weekly Wednesday pattern, with the finale keeping that same schedule.

What Fans Are Saying (Forum Vibes)

Pop culture forums and discussion threads treat this finale as the end of a three-summer era for the show. Common themes in fan chats include:

  • Mixed feelings about the series ending but relief to finally see Belly’s endgame on screen.
  • Speculation about how closely the finale will match the third book’s conclusion and epilogue.
  • Nostalgia for “summer TV comfort viewing” now that this yearly drop is wrapping up.

“We’ll have to wait and watch the Season 3 finale on September 17 to learn how the series ends.”

TL;DR

If you’re planning your watch: mark Wednesday, September 17, 2025, and set your alarm for 12 a.m. PT / 3 a.m. ET on Prime Video for the The Summer I Turned Pretty Season 3 finale.

Information gathered from public forums or data available on the internet and portrayed here.