Rising summer heat and more frequent and intense heatwaves impact countless metropolitan regions, including Greater Sydney, Australia. An analysis of historic air temperature measurements (1859–2020) reveals a notable increase in the number of ‘hot’ (≥35 °C) days during austral summers. While in the first 120 years of records 351 hot days were identified, 478 hot days were recorded during 2000–2020 alone. Trajectories of summer heat until 2060 indicate that maximum air temperatures in Western Sydney could be ≥ 35 °C during 160 days.

中文翻译：

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澳大利亚大悉尼地区城市内高温和热浪的时空变化


不断上升的夏季高温和更频繁、更强烈的热浪影响了无数大都市地区，包括澳大利亚大悉尼地区。对历史气温测量值（1859-2020 年）的分析显示，南方夏季“炎热”（≥35 °C）天数显著增加。虽然在有记录的前 120 年中确定了 351 个炎热的日子，但仅在 2000 年至 2020 年期间就记录了 478 个炎热的日子。到 2060 年的夏季高温轨迹表明，西悉尼在 160 天内的最高气温可能≥ 35 °C。