What year was Harry completing at Hogwarts in "Harry Potter and the Prisoner of Azkaban"? Harry was completing his third year at Hogwarts.
Harry Potter and the Prisoner of Azkaban is the third book and third film in the Harry Potter series, and its story takes place during Harry's third year at the Hogwarts School of Witchcraft and Wizardry. Harry is 13 for most of the story, having been born on July 31, 1980, according to the series timeline.
The school year introduces several important changes. Professor Remus Lupin becomes the new Defence Against the Dark Arts teacher, while Sirius Black's escape from Azkaban creates the central threat. Harry also begins studying Divination with Professor Trelawney and is allowed to visit the nearby wizarding village of Hogsmeade after receiving permission.
Readers sometimes confuse the school year with the series number, but here they match: The Prisoner of Azkaban is the third installment and follows Harry through his third year. The following story, Harry Potter and the Goblet of Fire, begins during his fourth year and expands the plot beyond Hogwarts.