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The Summer I Turned Pretty Season 3 Episode 10 will release on Prime Video this week. The series, based on Jenny Han’s novels, is now close to its finale. Episode 10 continues Belly’s Paris journey and introduces new characters while the Cousins Beach storyline develops. Here is a complete guide on release time, cast, trailer, streaming details, and how the story will progress.

The Summer I Turned Pretty Season 3 Episode 10 Release Date, Time and Where to Watch

The Summer I Turned Pretty Season 3 Episode 10 will premiere on Wednesday, September 10, 2025. Like earlier episodes, it will be available at 12:00 a.m. PT (3:00 a.m. ET). Fans can stream the new episode directly on Prime Video. All three seasons of the series are available for streaming now.

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The Summer I Turned Pretty Season 3 Episode 10 Trailer, Storyline

On August 29, 2025, Prime Video released a trailer highlighting the final episodes of Season 3. The trailer shows Belly’s experiences in Paris, Conrad’s letters, and hints toward events inspired by Book 3, We’ll Always Have Summer. This teaser has set expectations for Episode 10 as the season approaches its final stages.

The Summer I Turned Pretty Season 3 Episode 10 New Cast Members

Episode 10 will introduce several new characters who join Belly in Paris. The new cast members include:

• Corinna Brown
• Fernando Cattori
• Isaline Prevost Radeff
• Jahz Armando

These additions expand the story beyond Cousins Beach, showing Belly’s life abroad.

The Summer I Turned Pretty Season 3 Episode Count

Unlike earlier seasons, The Summer I Turned Pretty Season 3 includes 11 episodes. Season 1 had seven episodes and Season 2 had eight. This means Episode 10 is not the finale. The final episode of the series will release on September 17, 2025.

The Summer I Turned Pretty Final Season

Season 3 is the final season of the show. Jenny Han confirmed there will be no Season 4 since the three seasons match the three books in the original series. Season 3 is adapted from We’ll Always Have Summer.

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The Summer I Turned Pretty What to Expect, When is Finale?

Episode 9 ended with Belly in Paris, meeting new friends, while Conrad, Jere, and others remained at Cousins Beach. Episode 10 will continue these storylines. The finale on September 17 will reveal who Belly ends up with. While the books provide answers, the show may introduce changes.

The Summer I Turned Pretty Streaming Options

The Summer I Turned Pretty is available on Prime Video. To watch, viewers must have an active Prime subscription.

• Amazon Prime Subscription: $14.99/month or $139/year after a 30-day free trial.
• Prime Student Plan: 50% off for verified young adults, starting at $7.49/month after a free six-month trial.

The Summer I Turned Pretty Social Media Updates

Prime Video shared Episode 10’s trailer on August 29 with fan engagement across platforms. Fans expressed excitement for Belly’s Paris journey and Conrad’s letters. Posts with hashtags #TSITPSeason3 and #TheSummerITurnedPretty trended on X (formerly Twitter), TikTok, and Instagram.

FAQs

When does The Summer I Turned Pretty Season 3 Episode 10 release?
The Summer I Turned Pretty Season 3 Episode 10 releases on September 10, 2025, at 12:00 a.m. PT (3:00 a.m. ET) on Prime Video.

Is Episode 10 the finale of The Summer I Turned Pretty Season 3?
No. The Summer I Turned Pretty Season 3 has 11 episodes. The finale will air on September 17, 2025, marking the conclusion of the series.