HydrionisGlobal Water Intelligence
River

Lahn

26 monitoring stations on this water in Germany, holding 1,759 values between 2026 and 2026. A named watercourse. The gauges below sit on it, at points its publisher records.

GermanyRiver

The monitoring network on this water

Hydrionis holds 1,759 values from 26 gauges on this water. Discharge is a property of a gauge and its reach, not of this water as a whole, so this page reports the network and its records rather than a single figure.

26
Gauges
1,759
Values held
2026–2026
Record spans
Gauges on the Lahn
25 monitoring points, positioned as the publisher records them.
Gauges on the LahnMarburg, Leun Neu, Niederbiel Schleuse Kanal Op, Giessen Klärwerk, Runkel Schleuse Up, Fürfurt Schleuse Up, Diez Schleuse Op, Diez Schleuse Up, Diez Hafen, Cramberg Schleuse Op, Cramberg Schleuse Up, Scheidt Schleuse Op, Scheidt Schleuse Up, Kalkofen Schleuse Op, Kalkofen Neu, Hollerich Schleuse Op, Hollerich Schleuse Up, Nassau Schleuse Op, Limburg Schleuse Up, Dausenau Schleuse Op, Dausenau Schleuse Up, Bad Ems Wehr Op, Bad Ems Schleuse Up, Lahnstein Schleuse Op, Lahnstein Schleuse UpMarburgLeun NeuNiederbiel Schleuse Kanal OpGiessen KlärwerkRunkel Schleuse UpFürfurt Schleuse UpDiez Schleuse OpDiez Schleuse UpDiez HafenCramberg Schleuse OpCramberg Schleuse UpScheidt Schleuse OpScheidt Schleuse UpKalkofen Schleuse OpKalkofen NeuHollerich Schleuse OpHollerich Schleuse UpNassau Schleuse OpLimburg Schleuse UpDausenau Schleuse OpDausenau Schleuse UpBad Ems Wehr OpBad Ems Schleuse UpLahnstein Schleuse OpLahnstein Schleuse Up

Every gauge Hydrionis holds here

GaugeMeasuresValuesRecord
Leun Neumean river flow, river level1222026–2026
Giessen Klärwerkmean river flow, river level1212026–2026
Kalkofen Neumean river flow, river level1002026–2026
Diez Hafenmean river flow, river level742026–2026
Marburgriver level612026–2026
Niederbiel Schleuse Kanal Opriver level612026–2026
Runkel Schleuse Upriver level612026–2026
Fürfurt Schleuse Upriver level612026–2026
Diez Schleuse Opriver level612026–2026
Diez Schleuse Upriver level612026–2026
Cramberg Schleuse Opriver level612026–2026
Cramberg Schleuse Upriver level612026–2026
Scheidt Schleuse Opriver level612026–2026
Scheidt Schleuse Upriver level612026–2026
Kalkofen Schleuse Opriver level612026–2026
Hollerich Schleuse Opriver level612026–2026
Hollerich Schleuse Upriver level612026–2026
Nassau Schleuse Opriver level612026–2026
Limburg Schleuse Upriver level612026–2026
Dausenau Schleuse Opriver level612026–2026
Nassau Schleuse Upriver level612026–2026
Dausenau Schleuse Upriver level612026–2026
Bad Ems Wehr Opriver level612026–2026
Bad Ems Schleuse Upriver level612026–2026
Lahnstein Schleuse Opriver level612026–2026
Lahnstein Schleuse Upriver level612026–2026

How these gauges were attached to this water

Named by the publisher Each gauge here names this water in the publisher’s own station record. Hydrionis has not inferred the connection from station names.

GaugeEvidenceEstablished
Leun NeuStated by the publisher on the record this gauge’s observations came from.With the observations
Giessen KlärwerkStated by the publisher on the record this gauge’s observations came from.With the observations
Kalkofen NeuStated by the publisher on the record this gauge’s observations came from.With the observations
Diez HafenStated by the publisher on the record this gauge’s observations came from.With the observations
MarburgStated by the publisher on the record this gauge’s observations came from.With the observations
Niederbiel Schleuse Kanal OpStated by the publisher on the record this gauge’s observations came from.With the observations
Runkel Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Fürfurt Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Diez Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Diez Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Cramberg Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Cramberg Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Scheidt Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Scheidt Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Kalkofen Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Hollerich Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Hollerich Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Nassau Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Limburg Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Dausenau Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Nassau Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Dausenau Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Bad Ems Wehr OpStated by the publisher on the record this gauge’s observations came from.With the observations
Bad Ems Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations
Lahnstein Schleuse OpStated by the publisher on the record this gauge’s observations came from.With the observations
Lahnstein Schleuse UpStated by the publisher on the record this gauge’s observations came from.With the observations

What this record holds

Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 3 of them, which makes it a full profile.

SignalHeldCounts
Gauges holding a real record26yes, 3 or more
Years spanned1no
Values held1,759yes, 1000 or more
Distinct measurements2yes, 2 or more
Publishers measuring it1no
Official identifiers1recorded, not counted

Use this data

Use this data

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Lahn gauge records, accessed 2026-10-05, hydrionis.com/waters/germany-lahn/

Cite Hydrionis where you rely on the compilation, the normalisation, the eligibility judgements or a chart. Where you use an unmodified published value, the publisher’s attribution is the one that is required; crediting Hydrionis as well is welcome and is not something Hydrionis can require of you.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Lahn gauge records changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where these figures come from

Spatially aggregatedHigh confidence2026-09-30

Source: PEGELONLINE (WSV) — PEGELONLINE — German federal waterway gauges, 25800200. Licence: Open.

Method: Daily mean computed by Hydrionis from the fifteen-minute discharge record published by PEGELONLINE. Days with fewer than 72 of the expected 96 readings are not stored rather than averaged from a partial day.

Discharge is a property of this gauge and this reach, not of the river as a whole. Two gauges on the same river can differ by an order of magnitude.

Retrieved 1 October 2026.

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