Groundwater levels and forecasts for Germany

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Download of predictions
On this page, groundwater level forecasts for Germany can be downloaded. The data are available both nationwide and for individual federal states and cover different forecast horizons:

Short-term forecasts (for the next 3 months)
Decadal predictions (for the next 10 years)
Long-term projections (up to the year 2100)

Nationwide forecasts

Short-term forecast (.zip, 21 KB)

Decadal prediction (.zip, 4 MB)

Long-term projection (.zip, 54 MB)

Federal state forecasts

Baden-Württemberg

Short-term forecast (.zip, 5 KB)
Decadal prediction (.zip, 259 KB)
Long-term projection (.zip, 7 MB)

Bavaria

Short-term forecast (.zip, 2 KB)
Decadal prediction (.zip, 434 KB)
Long-term projection (.zip, 7 MB)

Berlin

Short-term forecast (.zip, 906 B)

Brandenburg

Short-term forecast (.zip, 3 KB)
Decadal prediction (.zip, 624 KB)
Long-term projection (.zip, 9 MB)

Bremen

Hamburg

Hesse

Short-term forecast (.zip, 3 KB)
Decadal prediction (.zip, 294 KB)
Long-term projection (.zip, 5 MB)

Mecklenburg-Western Pommerania

Short-term forecast (.zip, 2 KB)
Long-term projection (.zip, 2 MB)

Lower Saxony

Short-term forecast (.zip, 5 KB)
Decadal prediction (.zip, 669 KB)
Long-term projection (.zip, 12 MB)

North Rhine-Westphalia

Short-term forecast (.zip, 4 KB)
Decadal prediction (.zip, 388 KB)
Long-term projection (.zip, 9 MB)

Rhineland-Palatinate

Short-term forecast (.zip, 2 KB)
Decadal prediction (.zip, 114 KB)
Long-term projection (.zip, 2 MB)

Saarland

Saxony

Short-term forecast (.zip, 3 KB)
Decadal prediction (.zip, 171 KB)
Long-term projection (.zip, 5 MB)

Saxony-Anhalt

Short-term forecast (.zip, 3 KB)
Decadal prediction (.zip, 271 KB)
Long-term projection (.zip, 3 MB)

Schleswig-Holstein

Short-term forecast (.zip, 2 KB)
Long-term projection (.zip, 4 MB)

Thuringia

Short-term forecast (.zip, 950 B)

Usage note: The decadal predictions and long-term projections are model-based predictions and are not suitable for interpreting groundwater levels at the scale of individual weeks. They should only be used to assess long-term developments (e.g. multi-year averages or long-term trends). Please also refer to the general usage notes. The provided data are made available under the licence DL-DE BY 2.0. Please use the following reference when citing the dataset: BGR (2026): GRUVO - Seasonal Forecast April 2026.

Download of monitoring data
Measured groundwater levels are not provided here, as BGR is not the owner of the monitoring wells. Responsibility for measurements and data provision lies with the respective federal state authorities. We recommend accessing groundwater level data via the federal state data portals.

A comprehensive dataset containing groundwater levels from over 3,000 monitoring sites between 1991 and 2022 is available for analyses covering Germany as a whole: "OHMER, M., LIESCH, T., HABBEL, B., HEUDORFER, B., GOMEZ, M., CLOS, P., NÖLSCHER, M. & BRODA, S. (2025): GEMS-GER: a machine learning benchmark dataset of long-term groundwater levels in Germany with meteorological forcings and site-specific environmental features. – Data set; Zenodo." doi: 10.5281/zenodo.15530171