On what date did The Summer I Turned Pretty season 3 premiere on Prime Video?

The Summer I Turned Pretty season 3 premiered on July 16, 2025.

The third season was the series’ final television season and launched on Prime Video with its first two episodes available together. The remaining episodes followed weekly, creating a release pattern that carried the story through the summer and into September.

The premiere date is sometimes confused with the finale date, which was September 17, 2025. The season therefore ran for roughly two months rather than arriving all at once. Its release also differed from season 2, whose first three episodes premiered together in July 2023.

Season 3 adapted major elements from Jenny Han’s third novel, We’ll Always Have Summer, while adding or expanding television-only storylines involving the characters’ college years, Paris, and the wedding plans.