September in Australia is synonymous with two major things:
For 1 in 4 Australians, September is not "beautiful spring"—it's . The flowering wattle (Australia's floral emblem) releases clouds of yellow dust. Locals call it "the great yellow menace." Pack antihistamines unless you enjoy sneezing ten times in a row.
Australia is located in the , while countries like the US, UK, and Europe are in the Northern Hemisphere. Because the Earth is tilted on its axis, the seasons are reversed:
In the tropical north (Darwin, Kakadu), September is actually the end of the dry season. No rain, low humidity, perfect blue skies. This is the prime time to cruise Adelaide River and watch 5-meter saltwater crocodiles launch their entire bodies out of the water for a chicken leg.