KomPass: Article from 28.11.2023 | Last changed: 18.11.2025
WW-I-10: Water temperature of watercourses
… make any statements regarding long-term trends. The extremely high temperatures in 2018 and the associated lack of oxygen led to fish dying in many German water … of 7.2 °C was the coldest year in the decade of 1991–2000. The high values in 2018 and 2019 were due in part to high summer temperatures and low water levels. So … barbels it is 20 °C, and in the bream and chub-flounder regions it is 25 °C. 65 In 2018 these critical temperatures were exceeded in many locations. For instance, in …