What Season Is It In September In Australia Jun 2026

September is your last, best chance to see Southern Right and Humpback whales on their migration. Head to or Sydney’s coast —mothers are teaching calves to breach. It’s like a cetacean kindergarten.

| Item | Why you need it | | :--- | :--- | | | Mornings in Sydney/Melbourne are 8°C (46°F). | | Board shorts / bikini | Afternoons in Byron or Perth hit 25°C (77°F). | | A wool beanie | Southern winds are still icy. | | Strong SPF 50+ | The spring ozone hole above Antarctica lets through brutal UV rays. You can burn faster in September than in July. | | A rain shell | Because "four seasons in one day" is a real forecast in Melbourne. | what season is it in september in australia