Australia’s Bureau of Meteorology has officially confirmed the wet weather system is underway in the Pacific Ocean.
Meteorologists announced this week that the weather event, which typically brings above-average rainfall, is expected to be “weak and short-lived.”
While the extended summer forecast predicts below-average rainfall in western and eastern inland regions, offering relief for many Australians.
However, the Bureau also warned of significant weather variability, including an increased risk of bushfires in parts of New South Wales, Victoria, and Western Australia. Warmer-than-average days and nights, along with a heightened risk of extreme heat, are expected.
Australia is now entering its peak period for severe weather events, including thunderstorms, tropical cyclones, flooding, heatwaves, and bushfires, which runs from October to April.
2025 Summer Long-Range Forecast
Victoria
Victoria is forecast to experience warmer-than-usual summer days and nights, with a higher likelihood of unusually high daytime temperatures across much of the state. Rainfall in December is expected to be below average, with near-equal chances of above or below-average rainfall in January and February.
South Australia
South Australia is also likely to face warmer-than-average summer days and nights with the December rainfall predicted to be below average across most of the state.
Tasmania
Tasmania is expected to see warmer-than-usual summer days and nights, with a higher chance of unusually high temperatures and rainfall forecasts for summer show near-equal chances of above or below-average rainfall.
Queensland
Queensland is likely to experience above-average daytime temperatures, with most areas also facing unusually warm overnight conditions. While rainfall amounts will vary, the far north is expected to see average rainfall, while the west is likely to be drier than usual.
New South Wales and the ACT
Rainfall in December is forecast to be below average in NSW and the ACT, but January and February have equal chances of above or below-average rainfall. Temperatures during both the day and night are expected to be above average.
Northern Territory
Despite already experiencing a cyclone this season, the Northern Territory is forecast to have below-average rainfall this summer. The Top End is set to face unusually warm days and nights, with most areas likely to be hotter than average.
Western Australia
Rainfall in Western Australia is predicted to be below average across large parts of the state, though outcomes vary in the south, where above, below, or near-average rainfall are all possible. Summer days and nights are likely to be warmer than average across most of WA.
