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Global oceans experience record heat in June, driven by El Niño and climate change

Le Monde (English) · Jul 1, 2026, 2:43 AM · Also reported by 3 other sources

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The average surface temperature reached 20.98°C in June, surpassing the previous 2024 high, according to the European observatory Copernicus Marine. The first half of 2026 was the second-warmest on record.

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Al Jazeera World’s oceans experience hottest June ever, scientists say more heat ahead France 24 Oceans reach hottest June on record as El Niño threatens higher temperatures Euronews Spain ends its second-hottest June on record with nearly 900 heat deaths

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Global oceans experience record heat in June, driven by El Niño and climate change

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