When Is Summer 2024 Australian Calendar. The shortest summer holidays 2024 are in new south wales with 39 days.the longest summer. The summer holidays 2024 in australia have an average length of 45.1 days.

 — australian summer holidays start in the second half of december, depending on state and territories’ schedules.  — australia 2024 calendar online and printable for year 2024 with holidays, observances and full moons.