澳大利亚9月平均气温较1961-1990年长期平均值高出2.71℃，成为有记录以来第二高的9月1。同期最低气温也创下纪录，较长期平均值高2.52℃，其中最低夜间温度达到9月最高纪录，打破2023年创下的2.51℃纪录1。科学家指出，气候变化是这一现象的主要驱动因素，而厄尔尼诺现象进一步加剧了热浪影响1。
极端高温已影响澳大利亚各地。位于库斯丘什科国家公园的斯宾塞溪监测站9月积雪深度降至零，这是该站自1954年开始监测以来9月份的首次1。瑟雷德波地区的温度记录显示，9月平均最低气温首次达到0.1℃（高于冰点），这是该地过去59年的监测记录中的新纪录1。自1910年全国记录开始以来，澳大利亚整体已升温超过1.5℃1。气象科学家西蒙·格雷因格评价当前情况时表示，"几乎到处都很热"1。
Australia recorded its second-highest September temperatures on record, with mean temperatures exceeding the 1961-1990 long-term average by 2.71°C, while minimum overnight temperatures surged to 2.52°C above the baseline average.1 The minimum nighttime temperature reached its highest September level ever documented, breaking the previous 2023 record of 2.51°C above normal.1 Scientists identified climate change as the primary driver, with El Niño conditions intensifying the heat wave across the continent.1
The extreme temperatures have had cascading effects on Australia's mountain regions and snow cover. At Spencer Creek monitoring station in Kosciuszko National Park, September snow depth fell to zero for the first time since records began in 1954.1 The 59-year temperature record from Thredbo showed that September average minimum temperatures reached 0.1°C—above freezing—for the first time on record.1 Scientist Simon Grainger remarked that it was "hot almost everywhere."1 Since national temperature records began in 1910, Australia has warmed by more than 1.5°C overall.1 The El Niño event affecting the region is expected to be among the strongest on record.1
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