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Lake GreifenWater level today

434.64m a.s.l.

0 cm since yesterday

Measured15 minutes ago

Greifensee · Kanton Zürich (AWEL) – HydroPro

Change across the visible readings

0 cm

09/22 – 09/23

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View water balance →Temperature profile →
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Today at the lake

The current picture

A factual data summary – not a safety or swimming clearance.

Water temperature

21.7 °C

Pleasant

Modelled

Wind

1.1 km/h

Calm

Measured

Precipitation, 24h

0.0 mm

Dry

Measured

What's happening?

Measured outflows exceed inflows

-0.7 m³/s

The level has been falling for a week.

-0.02 m ü. M. · over 7 days

Weather at the lake

9.5°Air temperature
0.0mmRain, last 24 h
1.1km/hWind
9.5–9.5°Day range

0.0 mm in 48 h · 0.0 mm over 7 days · Gusts 4.7 km/h · 82 % humidity

Source: MeteoSwiss, station Zürich / Affoltern · 2 hours ago

UV index

Low
0Daily maximum 3
Course of the day
69121518

No protection needed.

Source: Open-Meteo

Recent events

16 hours ago

Modelled lake temperature (1 m depth): new weekly low (21.4 °C)

17 hours ago

Aabach, Mönchaltorf (temperature): new weekly low (13.3 °C)

17 hours ago

Aabach, Mönchaltorf (temperature): new weekly low (13.4 °C)

17 hours ago

Aabach, Mönchaltorf (temperature): new weekly low (13.5 °C)

17 hours ago

Glatt, Dübendorf (temperature): new weekly low (17.3 °C)

18 hours ago

Aabach, Mönchaltorf (temperature): new weekly low (13.6 °C)

Stations

6 monitoring stations
Show monitoring stations
Aabach, Mönchaltorf (inflow) · CH0.1 m³/s15 minutes ago→Aabach, Mönchaltorf (temperature) · CH15.5 °C20 minutes ago↓Modelled lake temperature (1 m depth) · CH21.7 °C2 hours ago↓Glatt, Dübendorf (outflow) · CH0.8 m³/s15 minutes ago→Glatt, Dübendorf (temperature) · CH18.8 °C20 minutes ago↓Greifensee · CH434.64 m a.s.l.15 minutes ago→

Webcams at Lake Greifen

Drag the timeline to compare the daily archive images.

Greifensee: Schloss Greifensee

Greifensee: Schloss Greifensee

Archive imageSep 23, 2026, 4:00 PM
Time travelSep 23, 2026, 4:00 PM
09/13Latest image
View original webcam

Understanding the water level

What is the water level of Lake Greifen? See the latest available level, its measurement time and source. Compare readings from the same station to understand the trend.

Reading in context

Putting Lake Greifen's current level in context

The main station at Greifensee reports a water level of 434.64 m a.s.l. at Sep 24, 2026, 1:20 AM. The series is provided by Kanton Zürich (AWEL) – HydroPro. This value is the elevation of the water surface above the official height datum, not the water depth at the shore.

Comparison with the nearest valid readings gives 0 cm over 24 hours and -2 cm over seven days. These are net changes between two points in time; they prove neither a continuous rise or fall nor its cause.

Understanding Lake Greifen

Lake Greifen lies east of Zurich between the Pfannenstiel ridge and the Zurich Oberland.

This overview includes 6 monitoring stations for water level, discharge, and water temperature. Not every station provides every measurement. Track changes at the same station, checking the timestamp, unit and source notes.

The curve shows recent level changes. A seasonal median, where available, compares the same time of year. Water can rise while remaining below that median: trend and comparison answer different questions. Neither replaces an official warning.

Measurement quality and sources

Data status

  • Measured — Recorded directly at a monitoring station.
  • Modelled — Computed by a scientific model (e.g. lake temperature from Alplakes), not measured on site.
  • Calculated — Derived from existing measurements, e.g. a balance or a change.
  • Archive image — Last archived image, not live.
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