Weather On September 9th 2025. Check the temperatures, chance of rain and more in melbourne during september. Get the monthly weather forecast for melbourne, victoria, australia, including daily high/low, historical averages, to help you plan ahead.

Expect 20°c daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in australia in september. With just 1.1in over 1 days, the rain will not be a problem.