Report: World's Oceans Experience Hottest June Ever
Copernicus said marine heatwaves affected about 82% of the global ocean by late June as El Niño and greenhouse gases pushed temperatures higher.
- Global average sea surface temperatures reached a record high for the January-to-June period, according to the European Union's Copernicus Marine Service, capping six months of unprecedented ocean warmth in 2026.
- Scientists warn that a powerful El Niño weather pattern, combined with greenhouse gas emissions, is driving temperatures higher; oceans absorb 90 per cent of excess heat caused by humanity's fossil fuel burning.
- Marine heatwaves affected around 82% of the world's oceans during the January-to-June period, with the Mediterranean reaching 24.3°C and the tropical Pacific 27.26°C, the service reported.
- Hotter seas directly increase sea level rise through thermal expansion and create unbearable conditions for tropical reefs; warmer oceans provide fuel for tropical cyclones and destructive rainfall.
- Copernicus Climate Change Service director Carlo Buontempo warns conditions may indicate a new phase; with El Niño on the horizon, he said "we are likely to see more temperature records fall in the coming months.
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144 Articles
The average global temperature of the ocean surface reached a record in June, leading the world to an "unknown scenario", according to scientists, as global warming and the El Niño cycle combine to increase the chances of more extreme weather events in the coming months. Exclusive material for subscribers. To have full access, access the link of the matter and register.
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The oceans have never been so warm in June: Copernicus' climate service sees the earth heading towards unknown terrain.At the beginning of the summer, the oceans on the surface have never been as warm as this year's. On June 21, the measurements of the EU climate program Copernicus at 20.86 degrees and the Copernicus marine service at 21.0 degrees Celsius were above the previous record values for this day from 2023 and 2024. In these two years, …
Record Ocean Heat Signals 'New Phase' in Climate Crisis
The world's oceans just notched a troubling new mark. European Union scientists say global sea-surface temperatures outside the polar regions hit a record for the time of year on June 21, a spike they warn could usher in "a new phase" of climate impacts as heat waves intensify on land,...
Global sea surface temperatures broke records again in June. On June 21, they reached nearly 21 degrees Celsius, slightly higher than the 20.83 degrees Celsius measured in 2023 and 2024. This was reported by the climate branch (C3S) and ocean branch (CMEMS) of the European Earth observation program Copernicus.
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