Overview

• Germany’s BSH reports a provisional North Sea summer average of about 15.7°C, potentially the highest since measurements began in 1969 and at least among the top three.
• Surface temperatures were two degrees or more above the long‑term mean across wide areas in the western and southwestern North Sea up to the English Channel.
• The German Bight and the eastern North Sea, including areas off Denmark and Norway, were up to 1.3°C warmer than usual.
• BSH says the German Baltic averaged roughly 16.7°C with regional anomalies of about +1.5°C to over +2°C, and notes the basin has warmed nearly 2°C since 1990.
• Britain’s Met Office reports a record‑warm summer at 16.1°C, about 1.5°C above average, with unusually warm surrounding seas helping heat build and persist.