Lac Léman - St-Prex 2027

Discharge and Water level
Water level
m a.s.l.
Last reading
02.10.2023 12:30
372.20
24hr mean 372.20
24hr maximum 372.21
24hr minimum 372.20

Danger levels

Water level m a.s.l.
  1. 5 > 372.9
  2. 4 372.65 - 372.9
  3. 3 372.55 - 372.65
  4. 2 372.35 - 372.55
  5. 1 < 372.35
The 5 flood danger levels and recommended behaviour

Forecast

Water level (m a.s.l.)

The hydrological forecasts shown are direct model outputs. The reliable forecast range is up to 24 hours. Predictions outside of this range should be interpreted as estimates. Regarding alerts, the statements as interpreted in the natural hazard bulletin on www.naturgefahren.ch are authoritative.

Explanatory notes on forecast plots

Graphs

Data and statistics

Key figures Water level

Period 1943 - 2019
Lowest value in row Highest value in row
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Monthly mean 372.02 m a.s.l. 371.85 m a.s.l. 371.67 m a.s.l. 371.67 m a.s.l. 371.89 m a.s.l. 372.18 m a.s.l. 372.27 m a.s.l. 372.26 m a.s.l. 372.25 m a.s.l. 372.21 m a.s.l. 372.18 m a.s.l. 372.14 m a.s.l.
Maximum reading
372.56 m a.s.l.
18.01.1955
372.30 m a.s.l.
24.02.1958
372.22 m a.s.l.
01.03.1958
372.08 m a.s.l.
24.04.1975
372.43 m a.s.l.
07.05.2015
372.73 m a.s.l.
29.06.1970
372.80 m a.s.l.
20.07.1951
372.63 m a.s.l.
01.08.1951
372.68 m a.s.l.
04.09.1944
372.55 m a.s.l.
19.10.1944
372.78 m a.s.l.
26.11.1944
372.60 m a.s.l.
01.12.1944
Minimum reading
371.36 m a.s.l.
31.01.1949
371.09 m a.s.l.
28.02.1949
371.02 m a.s.l.
08.03.1949
371.04 m a.s.l.
01.04.1949
371.40 m a.s.l.
01.05.1944
371.63 m a.s.l.
01.06.1957
371.97 m a.s.l.
02.07.1943
372.03 m a.s.l.
07.08.1989
372.00 m a.s.l.
30.09.1972
371.90 m a.s.l.
06.10.1972
371.84 m a.s.l.
30.11.1962
371.60 m a.s.l.
31.12.1948

Annual mean

Highest
372.18 m a.s.l. 1977
Lowest
371.78 m a.s.l. 1949
Mean
372.05 m a.s.l. Total period

Annual tables

Retrieve data

Explanations of the annual tables

Station information

Station altitude
372 m a.s.l.
Catchment size
7999 km2
Mean catchment altitude
1659 m a.s.l.
Glacial area
7.200%
Station coordinates
2'524'982 / 1'148'505

Data availability

Water level
1930 - today