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Zug – Water level

This station shows Water level at Lake Zug. Values apply to this location, not to an average of all stations on the water body.

Current level

413.18m a.s.l.→

Measurement time:

Current FOEN data are unchecked raw data and may be corrected later. A recent measurement time does not mean that a value has been validated. FOEN data quality

Current context

Largely stable over the last 24 hours.

What does this change mean?

“Largely stable” means the change from the comparison value about 24 hours earlier is less than 2 cm. The chart shows fluctuations in between.

We compare values at the same station at two points in time. If no suitably timed comparison value exists, we omit that statement. An unchanged value does not mean a seasonal normal or an all-clear. Changes below the displayed precision are also described as stable.

Lake Zug: what is a normal water level?

The median for the same calendar day is 413.44 m a.s.l.; the current value is 26 cm below it. The 413.35–413.55 m a.s.l. band contains the middle 50 percent of reference values from 1991-2020. Being outside it is less usual, but is not in itself a hazard level.

How is the reference level determined?

The reference comes from FOEN daily statistics for this calendar day. The seasonal median varies throughout the year and is not a fixed target level. The middle 50% is the range between the 25th and 75th percentiles, not a safety limit. The 30-day comparison describes only the recent development.

Past 30 days at a glance

Low
413.18 m a.s.l.
413.22 m a.s.l.

Median of available daily means: 413.21 m a.s.l. · 30 days in the comparison window.

The current individual value is compared with available daily means from the last 30 complete days, using Coordinated Universal Time (UTC) for day boundaries. Min. and max. refer to daily means, not individual peaks. A day counts when values exist; gaps can affect its mean. For model series, this compares model values. “High” refers to this short window, not an official danger level or a seasonal normal.

Source

Zug

Measurement at the lake. Inflow and outflow stations are identified separately.

Measurement time: Nov 7, 2026, 2:10 PM

Bundesamt für Umwelt (BAFU) ↗

Change across the visible readings

-2 cm

10/31 – 11/07

CSV export

Explore readings with your finger or mouse. Arrow keys also work in the chart.

Question about a reading →

Over the past 24 hours the value ranged between 413.17 m a.s.l. and 413.18 m a.s.l. and stayed largely stable.

Based on 144 available values from Nov 6, 2026, 2:10 PM to Nov 7, 2026, 2:10 PM (Swiss local time). The range describes stored values, not necessarily every peak that occurred.

Understanding readings at Zug

A level in metres above sea level describes the surface elevation in the stated datum, not water depth. Use the same station for trends. Networks or countries may use different vertical datums, so a numerical difference does not necessarily represent a physical height difference.

Check the time and source first, then the chart and unit. Missing or disrupted readings cannot support a reliable current assessment. A short comparison describes recent changes, not flood probability. Follow official warnings and local instructions for safety decisions.

Other stations on Lake Zug

Station information

Lake
Lake Zug
Location
Zug
Canton
ZG
Measured quantities
Water level
Station number
2017
Coordinates
47.1716, 8.5159
Source
Bundesamt für Umwelt BAFU