The summer holidays were holidays of two months separating the school years at Hogwarts School of Witchcraft and Wizardry.

During this time, the students of Hogwarts returned to their families or guardians. Unlike the Christmas holidays, there was no regular option to spend the summer in the Castle. Exceptions could be made if approved by the Headmaster. In the 1940s, Tom Marvolo Riddle, not wanting to return to his orphanage, asked Armando Dippet to stay at Hogwarts, but was denied due to the Opening of the Chamber of Secrets.

Some teachers also returned to their old homes, as Severus Snape did in 1996.

At the end of their first year, students got a notice that they were not allowed to use magic during the holidays, in accordance with the Decree for the Reasonable Restriction of Underage Sorcery.

Shortly before the end of the holidays, the invitation and supply lists for the approaching school year were delivered to the students. Approaching sixth years also received the results of their Ordinary Wizarding Level examinations during the holidays.

The last day of the holidays was 31 August.