Very rarely. It never snows in the city centre, but areas in the Adelaide Hills, particularly Mt Lofty, might see snow every 5-10 years. Click here for a charming collection of photos of the Adelaide Hills under 15cms of snow in the 1950s. In general, South Australia Adelaide has a mild Mediterranean climate, with hot, dry long summers and mild winters, though wind chill makes the weather sometimes feel much colder than it really is! June is the wettest month, though Adelaide is the driest Australian city. Reflecting Adelaide’s and the regional areas generally mild weather, Odyssey Traveller is offering tours from August through to November this year, and from February onward in 2021.