Germany experienced a notably warm summer in 2025, exceeding long-term averages and characterized by two distinct heatwaves interspersed with a cooler, wetter period in July, according to preliminary evaluations released Friday by the German Weather Service (DWD).
The nationwide average temperature for the summer registered at 18.3 degrees Celsius, a full 2.0 degrees above the reference period of 1961-1990.
Peak temperatures were recorded in early July and again in mid-August, with Andernach in Rhineland-Palatinate reporting the highest nationwide reading of 39.3 degrees Celsius. The month of July, however, presented a contrast, being comparatively cool and marked by increased rainfall, which provided some relief from earlier dry conditions. Total precipitation across the country averaged approximately 227 liters per square meter, around five percent lower than the 1961-1990 average.
Sunshine duration totaled approximately 720 hours, significantly exceeding the average of 614 hours, with the southwestern regions experiencing particularly high levels, nearing 800 hours in some areas. Regional variations were considerable: while central Germany often experienced drier conditions, the Alpine regions received the highest precipitation totals, ranging from 500 to over 700 liters per square meter in localized areas.