August 2026 will be the hottest August in recorded history on Earth. Thus begins the next 12+ month streak of each new month being the hottest on record, driven by El Niño + climate change. August 2027 will likely be hotter than 2026. During the last El Niño in 2023–24, we went 13 straight months setting a new all-time record warm month. This year's El Niño is forecast to be nearly twice as strong. Buckle up.
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August 2026 is on track to be the clear warmest August on record in the ERA5 dataset, which will be the first record setting month so far this year (but definitely not the last given the monster El Nino developing!).
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