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Seasonal level comparison

Lake levels compared with the seasonal normal

Each lake is compared with its own long-term median for today’s calendar date, showing where levels are currently higher or lower than is typical for the season.

0

lakes above the seasonal median

23

lakes below the seasonal median

0

lakes virtually at the median

Deviations in centimetres

Every value is relative to that particular lake. A deviation of +10 cm means its current level is 10 cm above its seasonal median, not above a common Swiss reference level.

Above the seasonal median

No comparable lake is currently above its seasonal median.

Below the seasonal median

  1. 01Lake Joux−149 cmCurrent: 1,002.72 m a.s.l.Median: 1,004.21 m a.s.l.24 hours: -0.01 m a.s.l.Lac de Joux, Le Pont · Source: Bundesamt für Umwelt (BAFU)
  2. 02Lake Constance−100 cmCurrent: 394.72 m a.s.l.Median: 395.72 m a.s.l.24 hours: ↓-0.01 m a.s.l.Romanshorn · Source: Bundesamt für Umwelt (BAFU)
  3. 03Lake Maggiore−84 cmCurrent: 192.49 m a.s.l.Median: 193.33 m a.s.l.24 hours: ↓-0.01 m a.s.l.Locarno · Source: Bundesamt für Umwelt (BAFU)
  4. 04Lake Walen−79 cmCurrent: 418.16 m a.s.l.Median: 418.95 m a.s.l.24 hours: →0.00 m a.s.l.Murg · Source: Bundesamt für Umwelt (BAFU)
  5. 05Lake Zurich−74 cmCurrent: 405.27 m a.s.l.Median: 406.01 m a.s.l.24 hours: ↓-0.01 m a.s.l.Zürich · Source: Bundesamt für Umwelt (BAFU)
  6. 06Lake Ägeri−49 cmCurrent: 723.25 m a.s.l.Median: 723.74 m a.s.l.24 hours: →0.00 m a.s.l.Ägerisee, Unterägeri · Source: Bundesamt für Umwelt (BAFU)
  7. 07Lake Hallwil−46 cmCurrent: 448.04 m a.s.l.Median: 448.50 m a.s.l.24 hours: →0.00 m a.s.l.Meisterschwanden · Source: Bundesamt für Umwelt (BAFU)
  8. 08Lake Baldegg−46 cmCurrent: 462.48 m a.s.l.Median: 462.94 m a.s.l.24 hours: 0.00 m a.s.l.Baldeggersee, Gelfingen · Source: Bundesamt für Umwelt (BAFU)
  9. 09Lake Lauerz−39 cmCurrent: 446.68 m a.s.l.Median: 447.07 m a.s.l.24 hours: ↓-0.01 m a.s.l.Lauerzersee, Lauerz, Chlostermatt · Source: Bundesamt für Umwelt (BAFU)
  10. 10Lake Sempach−32 cmCurrent: 503.35 m a.s.l.Median: 503.67 m a.s.l.24 hours: →0.00 m a.s.l.Sempachersee, Sempach · Source: Bundesamt für Umwelt (BAFU)
  11. 11Lake Zug−31 cmCurrent: 413.18 m a.s.l.Median: 413.49 m a.s.l.24 hours: ↓-0.01 m a.s.l.Zug · Source: Bundesamt für Umwelt (BAFU)
  12. 12Lake Sarnen−28 cmCurrent: 469.07 m a.s.l.Median: 469.35 m a.s.l.24 hours: ↑+0.01 m a.s.l.Sarnersee, Sarnen · Source: Bundesamt für Umwelt (BAFU)
  13. 13Lake Lucerne−19 cmCurrent: 433.37 m a.s.l.Median: 433.56 m a.s.l.24 hours: ↓0.00 m a.s.l.Luzern · Source: Bundesamt für Umwelt (BAFU)
  14. 14Lake Brienz−13 cmCurrent: 563.75 m a.s.l.Median: 563.88 m a.s.l.24 hours: ↑+0.01 m a.s.l.Ringgenberg · Source: Bundesamt für Umwelt (BAFU)
  15. 15Lake Murten−11 cmCurrent: 429.16 m a.s.l.Median: 429.27 m a.s.l.24 hours: ↓-0.02 m a.s.l.Murtensee, Murten · Source: Bundesamt für Umwelt (BAFU)
  16. 16Lake Biel−10 cmCurrent: 429.16 m a.s.l.Median: 429.26 m a.s.l.24 hours: ↓-0.01 m a.s.l.Ligerz · Source: Bundesamt für Umwelt (BAFU)
  17. 17Lake Neuchâtel−9 cmCurrent: 429.18 m a.s.l.Median: 429.27 m a.s.l.24 hours: ↓-0.01 m a.s.l.Neuchâtel, Nid-du-Crô · Source: Bundesamt für Umwelt (BAFU)
  18. 18Lake Lugano−8 cmCurrent: 270.38 m a.s.l.Median: 270.46 m a.s.l.24 hours: ↓0.00 m a.s.l.Melide · Source: Bundesamt für Umwelt (BAFU)
  19. 19Lake Thun−5 cmCurrent: 557.76 m a.s.l.Median: 557.81 m a.s.l.24 hours: →0.00 m a.s.l.Spiez · Source: Bundesamt für Umwelt (BAFU)
  20. 20Lake Sils−4 cmCurrent: 1,796.73 m a.s.l.Median: 1,796.77 m a.s.l.24 hours: →0.00 m a.s.l.Silsersee, Sils Baselgia · Source: Bundesamt für Umwelt (BAFU)
  21. 21Lake St. Moritz−3 cmCurrent: 1,767.85 m a.s.l.Median: 1,767.88 m a.s.l.24 hours: →0.00 m a.s.l.St. Moritzersee, St. Moritz · Source: Bundesamt für Umwelt (BAFU)
  22. 22Lake Geneva−1 cmCurrent: 372.17 m a.s.l.Median: 372.18 m a.s.l.24 hours: →+0.02 m a.s.l.Genève-Sécheron · Source: Bundesamt für Umwelt (BAFU)
  23. 23Lake Silvaplana−0 cmCurrent: 1,790.66 m a.s.l.Median: 1,790.66 m a.s.l.24 hours: →0.00 m a.s.l.Silvaplanersee, Silvaplana · Source: Bundesamt für Umwelt (BAFU)

What does seasonal normal mean?

We compare the latest main-gauge reading with the long-term median for the same calendar date. This median is the middle reference value of the historical daily readings and reflects the typical annual cycle better than one fixed normal level.

Reference period of the available FOEN daily statistics: 1991-2020. Reading, timestamp and source are shown for every lake.

This classification is not a flood warning. Only information from the responsible authorities is binding for danger levels and official warnings.

View level movements over the last 24 hours →