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Global Ocean Surface Temperature Reaches Record High of 21.1C Amidst El Niño Growth
Key points
- Average ocean surface temperature hit 21.1C on Saturday.
- This exceeds the previous record of 21.09C set in March 2024.
- The record is influenced by human-driven warming and the growing El Niño.
- Scientists note the unusual timing, as yearly peaks typically occur in March/April.
Ocean Temperatures Reach New Peak
The average surface temperature of the world's oceans, excluding polar regions, reached 21.1C on Saturday. This figure, reported by the European Copernicus climate change service, marks a new record, slightly exceeding the 21.09C recorded on three separate days in March 2024. This temperature is significantly above the average for this time of year.
Contributing Factors: Climate Change and El Niño
The record-breaking ocean temperatures are attributed to a combination of human-caused climate change and the intensifying El Niño weather phenomenon. Dr. Samantha Burgess, deputy director of Copernicus, stated that El Niño is adding heat to a system already warmed by decades of human activity. The data is compiled from measurements taken 10 meters below the surface, using buoys, ships, and satellites.
Unusual Timing Raises Concerns
Scientists find the timing of this record particularly notable. Typically, average worldwide sea temperatures peak in March or April, coinciding with the end of the Southern Hemisphere's summer. The Southern Hemisphere's larger ocean surface area has a greater influence on global average temperatures. The current record in August, before El Niño is expected to reach its peak, suggests a stronger than anticipated warming trend.
Potential Impacts and Future Outlook
Warmer oceans can lead to widespread consequences, including more intense extreme weather events, rising sea levels, and detrimental effects on marine ecosystems. Dr. Jeremy Grist, a senior research fellow at the National Oceanography Centre, indicated that the current record is an early sign of El Niño's strength. He also suggested that ocean temperature records could be broken again in March or April 2027, assuming current trends continue.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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Reporting from
The world's oceans recorded their highest average surface temperature at 21.1C, surpassing previous records, according to data from the European Copernicus climate change service. This record temperature is attributed to human-caused climate change and the developing El Niño phenomenon, raising concerns about extreme weather, sea levels, and marine life.