Hydrological Yearbook of Switzerland

The Hydrological Yearbook gives an overview of the hydrological situation in Switzerland. It shows the changes in water levels and discharge rates from lakes, rivers and groundwater and provides information on water temperatures and water quality of the principal rivers in Switzerland.

Hydrological Yearbook of Switzerland 2022 (Summary)


Discharge, water level and water quality of Swiss water bodies. 2023

Informations about the actual situation and historical data

Older hydrological yearbooks

This publication, which first appeared in 1917, has been continually adapted to meet changing needs and to reflect the introduction of new data-processing tools. The Yearbooks can be ordered from the FOEN, and the editions produced since 1996 are also available online in PDF format.

Further information

Last modification 02.07.2018

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