South Australia faced another scorching day on Monday, while Victoria braced for what could be its hottest day ever on Tuesday. The Bureau of Meteorology forecasts temperatures near 50°C across inland areas. Ouyen and Mildura in north-west Victoria may reach 49°C, breaking the state’s highest record of 48.8°C set in 2009. Melbourne could hit 44°C, close to its record of 46.4°C. Dean Narramore, senior meteorologist, said, "We’ll likely see numerous locations approach or exceed January, and some annual records tomorrow." Adelaide expected a high of 46°C, possibly its hottest day since the 2009 black summer. Inland areas of Victoria, South Australia, and New South Wales will face severe heat well into next weekend, with daily highs in the mid-to-high 40s. "We’re looking at a week of temperatures in the mid-to-high 40s and overnight lows in the high 20s to low 30s," Narramore added. Life Saving Victoria warned beachgoers, "Stay cool, stay hydrated, stay indoors, stay out of the sun." They urged swimming only in patrolled areas and supervising children at all times. Fire dangers are increasing. Total fire bans cover South Australia’s west coast, New South Wales central ranges, and the entire state of Victoria. Fires continue burning out of control in Victoria, including the Otways. CFA chief Jason Heffernan stated, "There’s a heat emergency going on, in addition to a fire emergency across the state of Victoria." Residents in northern Victoria could see eight days above 40°C. Australia recorded its fourth-warmest year in 2025, with average temperatures 1.23°C above normal. The climate crisis is making heatwaves and bushfires more frequent and severe. Hot conditions are expected to last until April, with sea surface temperatures staying above average globally, including near Australia.