Christmas Weather Forecast 2025 Adelaide Australia. With christmas day a week. When it comes to the big day itself, temperatures at adelaide and elizabeth are expected to hit a high of 20c with a chance of showers on christmas day.

Get the monthly weather forecast for adelaide, south australia, australia, including daily high/low, historical averages, to help you plan ahead. In adelaide, families can expect highs of 26c in adelaide, while christmas eve set to be cloudy.