Two large rainbands will spread across southeastern Australia this week, delivering more than 100 mm of rain to parts of Victoria, New South Wales and Tasmania.

A series of upper-level troughs interacting with moisture-laden air will cause two large bands of cloud and rain to sweep across central and southeastern Australia this week. The first will pass through on Monday and Tuesday, before the second follows on Wednesday and Thursday.

These rainbands will be followed by another burst of rain and snow towards the end of the week as a low pressure system causes cold air to surge across southeastern Australia between Thursday and Saturday.

The combined rainfall from these three systems will affect parts of every Australian state and territory during the next seven days, including the entire Murray-Darling Basin.

The heaviest rainfall is likely to occur in northern Tas, central and northeast Vic and southern inland NSW. Computer models are predicting more than 100 mm of rain in these areas this week, with isolated totals possibly exceeding 200 mm. Widespread weekly totals of 30 to 60 mm are also likely across parts of western NSW, western Queensland, South Australia, Vic and Tas.

Image: Forecast accumulated rain during the seven days ending at 10 pm AEST on Sunday, July 5, 2026. Source: Weatherzone.

Rain bands like the ones affecting Australia this week are common in winter. However, seeing two in quick succession followed by further wet weather from a low could see some areas collecting a month’s worth of rain over the next seven days.

This week’s rain is likely to cause areas of flooding, most likely in Vic, Tas and southern NSW. As of 1 pm AEST on Monday, June 29, a flood watch was in place for parts of North East and Central Victoria, alerting people in these areas that minor to moderate flooding is likely to develop this week, with areas of major flooding possible.

Image: Radar on the Weatherzone app showing rainfall over Vic and NSW on Monday, June 29, 2026. Source: Weatherzone.

Be sure to check the latest weather and flood warnings in your area throughout this week. The Bureau of Meteorology advises the following to stay safe during flooding:

Don't drive, walk, swim or play in floodwater because it is dangerous.

Stay away from flooded drains, rivers, streams and waterways.

Obey road closure signs. Plan ahead so you don't drive on flooded roads.

Check the ABC and local media for updates. The situation can change quickly, so stay informed.