Growth of 0.3% had been expected in the institutes' spring forecasts.
The so-called Joint Economic Forecasts are to be presented in Berlin on Thursday.
The economics ministry usually updates its forecasts incorporating the results of the Joint Economic Forecasts.
For 2024, the institutes - four German and one Austrian - forecast GDP growth of 1.3%, down from 1.5% previously.
The Joint Economic Forecasts are prepared by the Ifo Institute, the Halle Institute for Economic Research, the Kiel Institute for the World Economy, the RWI – Leibniz Institute for Economic Research and the Austrian Institute of Economic Research.
Persons:
Annegret, Christian Kraemer, Rene Wagner, Maria Martinez, Rachel Armstrong, Kirsti Knolle, Sharon Singleton
Organizations:
REUTERS, Rights, Reuters, Ifo Institute, Halle Institute for Economic Research, Kiel Institute, Institute for Economic Research, Austrian Institute of Economic Research, Thomson
Locations:
Berlin, Germany