The golden rule for Australian autumn is layers . You can start the day needing a light jacket and end it in a t-shirt. Don’t forget a raincoat for the southern cities (April showers are real in Melbourne and Sydney), and plenty of sunscreen—the Australian sun is fierce even in autumn.

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If you’re planning a trip, calling a friend down under, or just curious about the world’s weather, you might be surprised to learn that Australia doesn’t follow the same seasonal calendar as the northern hemisphere.