A view of the North Sea showcasing its warm waters during summer 2025.

Germany’s North Sea hits record temperatures in summer 2025. The year 2025 has been marked by higher water temperatures in the North Sea, with records reached at the start of the year as well as in spring. | AI News Digest

Published: September 2, 2025, 9:08 p.m. Environment Negative

Germany's North Sea has recorded unprecedented water temperatures this summer, reaching an average of 15.7°C, the highest since 1969. The Federal Maritime and Hydrographic Agency (BSH) reported that temperatures were two degrees above the long-term average, with significant variations across different regions. This summer's marine heatwaves are becoming more frequent, linked to climate change impacts. The rising temperatures are expected to have far-reaching consequences for marine ecosystems and weather patterns. Experts emphasize the need for enhanced coastal protection measures in response to these changes. The data reflects a concerning trend in ocean warming, highlighting the urgency of addressing climate issues.

North SeaClimate ChangeMarine HeatwavesWater TemperaturesGermany