Lac Léman - St-Prex 2027
Discharge and Water level
|
Water level
m a.s.l.
|
|
|---|---|
|
Last reading
01.05.2025 08:50
|
371.90
|
| 24hr mean | 371.89 |
| 24hr maximum | 371.90 |
| 24hr minimum | 371.88 |
Danger levels
Water level m a.s.l.
- 5 > 372.9
- 4 372.65 - 372.9
- 3 372.55 - 372.65
- 2 372.35 - 372.55
- 1 < 372.35
Graphs
Regarding alerts, the statements as interpreted in the natural hazard bulletin on www.natural-hazards.ch are authoritative. The hydrological forecasts shown are direct model outputs. Explanatory notes on forecast plots
Data and statistics
Key figures Water level
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Monthly mean | 372.03 m a.s.l. | 371.86 m a.s.l. | 371.68 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. | 372.24 m a.s.l. | 372.21 m a.s.l. | 372.19 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
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