When Does Summer Start In Australia 2024. The tropical north is in the midst of its wet season (november to april), which brings heavy rains and tropical storms to darwin, broome, cairns and the whitsundays. Australian summer holidays start in the second half of december, depending on state and territories' schedules.
That’s because we follow the meteorological seasonal system, which means the seasons change on the first of september, march, june. The seasons are brought about by the yearly orbit of the earth around the sun and the tilt of the earth’s axis.