La Niña cooling pattern in the Pacific Ocean
La Niña is a naturally occurring climate phenomenon characterised by cooler-than-average sea surface temperatures in the central and eastern equatorial Pacific Ocean. It is part of the El Niño–Southern Oscillation (ENSO) cycle and significantly influences global weather patterns. By altering atmospheric circulation, La Niña can lead to increased rainfall in some regions and drought in others, affecting agriculture, water resources, and marine ecosystems around the world.
This data visualisation, based on data from the Copernicus Marine Service, shows sea surface temperature anomalies on 8 December 2025. A distinct band of cooler water, identified by blue tones, stretches along the equatorial Pacific, clearly indicating the presence of La Niña.
Information from the Copernicus Marine Service is crucial for monitoring ocean temperature anomalies in near-real-time, supporting climate forecasting, marine resource management, and preparedness for extreme weather events associated with large-scale climate phenomena.
