Oceans could set a record high and possibly reach 2027

• On April 21, the Copernicus Climate Change Service reported that record ocean temperatures in the region could persist through 2023 and 2024.
• Ocean temperatures could be driven by the ongoing La Niña cycle, which may intensify the effects of El Niño, which is already expected to continue into the coming months
• Scientists also warn that rising sea levels could be caused by ongoing climate change and the impact of ocean currents on weather patterns

Ocean temperatures in the Northern Hemisphere have been breaking records for April. According to the Copernicus Climate Change Service, on April 21, ocean temperatures in the region are expected to remain record-high through 2023 and 2024.

As scientists explain, the new cycle, known as the La Niña cycle, is a global climate pattern that affects the world’s oceans. It is likely to begin with a phase shift from El Niño, which is currently expected to end and be replaced by La Niña.

Scientists also note that more than 90% of the excess energy in the Earth system is absorbed by the oceans. That is why changes in ocean temperatures can have a major impact on weather patterns. In 2025, the global average sea surface temperature is expected to rise by about 12 degrees Celsius, with a significant increase in heat content.

Scientists point out that the temperature of the ocean influences the climate system, increasing atmospheric heat and driving changes in weather patterns. In turn, the ocean’s heat can affect the intensity of storms and other extreme weather events.

El Niño can intensify the effects of the atmosphere, causing temperatures to rise and potentially leading to more extreme weather. In particular, in 2026, the sea surface temperature could reach record levels, and the impact of El Niño could be felt more strongly, with the ocean heat continuing to accumulate. A similar scenario occurred during El Niño in 2023/24 and in 2015/16.

In the meantime, the global ocean heat content, which can be released into the atmosphere, may increase the risk of extreme weather events. Scientists say that the heat stored in the ocean can persist for years, affecting climate patterns and contributing to ongoing changes.

According to the forecast, the ocean’s heat could remain elevated, increasing the likelihood of stronger storms and more intense rainfall. That could also affect marine ecosystems and fisheries, as well as the overall stability of ocean conditions. Scientists warn that the climate system is becoming increasingly sensitive to these changes, and the effects may continue to be felt for some time.

Tags: Weather/Ecology/Research