In Australia | Winter Temperatures

Mild days with crisp, clear nights; Perth experiences more rain. (Sydney, Melbourne) 13°C – 18°C 6°C – 10°C Cool to cold; often overcast with frequent showers. Alpine & Tasmania (Hobart, Snowy Mtns) 6°C – 12°C -2°C – 4°C

Australia is a massive continent, so a "solid guide" to winter needs to account for the fact that winter in tropical Darwin is completely different from winter in snowy Hobart.