A series of powerful cold fronts will cause an outbreak of wintry weather across the southern half of Australia during the next six days, with damaging winds, rain, thunderstorms, hail and snow in multiple states.

A complex low pressure system is set to pass to the south of Australia between Friday this week and the middle of next week. While this low will be centred to the south of Australia, a series of cold fronts and low pressure troughs associated with the complex low will sweep over the southern half of the country and deliver a dynamic mix of wintry weather in multiple states.

The first front from this system will deliver blustery winds, rain and thunderstorms over WA on Friday and Saturday. Perth and other areas of WA’s western and southwest coasts could see about 20 to 50 mm of rain during these two days combined. Lighter falls will also extend further inland to the Interior and north towards the Gascoyne and Pilbara districts.

Wind, rain and some thunderstorm activity will then spread further east across other areas of southern and southeastern Australia between Sunday and Wednesday.

A surge of pre-frontal moisture is expected to cause widespread rain over the Murray-Darling Basin on Tuesday, while showers will also affect other areas of southern Australia with the passage of this system. Some of this precipitation will fall as snow and hail, mainly in the colder air behind the fronts.

Image: Forecast accumulated rain during the week ending on Wednesday, June 25. 2025.

While a brief period of relatively warm winter weather will precede the approaching system, this will quickly be replaced by the burst of wintry weather.

Adelaide’s maximum temperature is predicted to reach 22°C on Sunday but only 15°C by Tuesday. Sydney could reach the low to mid-twenties on Tuesday but only about 18°C by Wednesday.

Severe weather warnings are likely to be issued in several states as this system affects Australia, so be sure to check the latest warnings in your area.