As of January 27, 2026, multiple Australian states, especially in the southeast, including South Australia, New South Wales, and Victoria, are experiencing an intense heatwave, with temperatures approaching 50°C, breaking historical records.
The combination of dry conditions, strong winds, and extreme heat has prompted meteorological agencies and fire services to issue severe fire danger warnings, with some areas enforcing total fire bans. Victoria has issued evacuation notices in response to uncontrolled wildfires. Extremely high nighttime temperatures prevent the body from cooling effectively, increasing risks of heatstroke and cardiovascular problems. The Bureau of Meteorology (BoM) has issued heatwave warnings across multiple states and territories, advising residents to minimize outdoor activity, stay hydrated, and monitor official safety information, including fire alerts.
Scientists note that the heatwave is primarily driven by an upper-level high-pressure system. This so-called “heat dome” over New South Wales causes descending air to compress and heat, sustaining extreme temperatures. The high-pressure system’s unusually southern position and slow movement make this heatwave more intense and prolonged than usual, also heightening the risk of bushfires.