The global average sea-surface temperature reached a record 21.1 degrees Celsius on August 22, 2026, according to Europe's Copernicus Earth observation agency. The warming is driven by climate change combined with a powerful El Niño forming in the tropical Pacific.
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The global average sea-surface temperature hit a record 21.1 degrees Celsius on Aug. 22, according to Europe's Earth observation agency Copernicus.
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Scientists have recorded the highest temperature ever measured in the world’s oceans, as climate change combines with a powerful El Nino in the tropical Pacific. The global average sea-surface temperature hit a record 21.1 degrees Celsius (70 Fahrenheit) on August 22, according to Europe’s Earth observation agency Copernicus, which has been tracking the metric daily since 1979. The previous single
Global ocean temperatures are typically highest in March and April, said Copernicus.