A deep low pressure system stationed over inland Queensland is set to drop between 40 and 60mm of rain along coastal areas from Cairns to the Gold Coast.

A deep low pressure system stationed over inland Queensland is set to drop between 40 and 60mm of rain along coastal areas from Cairns to the Gold Coast. Photo: Glenn Hunt

Cancel your weekend plans and set a date with your couch – Brisbane is about to get chilly.

The traditional last gasp of winter is set to be even stronger than usual, with a deep low pressure system stationed over inland Queensland preparing to drop between 40 and 60mm of rain along coastal areas from Cairns to the Gold Coast.

The pressure system also includes a few thunderstorms, which Bureau of Metrology forecaster Pradeep Singh said could bring isolated inland coastal areas, such as the Gold Coast hinterland, up to 100 mm of rain across the weekend.

The usual average rainfall for August is between 10 and 15 mm. The intensity of this system has taken meteorologists, who were not predicting heavy rainfall until at least October, by surprise.

“It is not unusual, but it is rare,” Mr Singh said.

“2010 was the last time we had this sort of rain fall in August.”

A deep cloud cover is set to join the rain, which Mr Singh said would see temperatures, which had been hovering about the 25 degree mark, drop to 18 degrees on Saturday and 19 degrees on Sunday, but the annual Ekka westerly winds “will make it feel even colder”.

Mr Singh said the rain should begin to clear on Sunday morning, with usual August weather due to return for the working week.

Amy Remeikis