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Lac Léman - Hirondelle

Lake model at the site

A decent day.

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7.8
Ø 6.8
21.10.–02.11.
Dive index / 10
Visibility indicator
Good
Satellite (Sentinel-2) of 30.10.2026: approx. 6.4 m near the shore · better below 10 m
6.4 m
since 21.10.
Wind
3 Bft
13 km/h, gusts 27 km/h
5 km/h
next 5 days
Algae (satellite)
Unknown
Low
since 21.10.
Current
noticeable
8 cm/s towards north-west · 5–30 m
Temperature by depth

Thermocline at 7–10 m

Thermocline 0 m20 m30 m40 m7 m10 m6°10°14°18°22° 12.2° 9.9° 8.1° 7.2°
  • 0 m: 12.2 °C
  • 10 m: 9.9 °C
  • 20 m: 8.1 °C
  • 30 m: 7.2 °C
The next 5 days
  1. Today
    7.8
    clearer below
  2. Tue
    8.6
    clearer below
  3. Wed
    8.6
    clearer below
  4. Thu
    6.5
    old satellite
  5. Fri
    6.5
    old satellite

Weather trend

Weather in 2-hour steps for the next days Today: 4 to 10 °C, 0.0 mm rain, wind up to 16 km/h. Tue 03.11.: 5 to 10 °C, 0.0 mm rain, wind up to 13 km/h. Wed 04.11.: 5 to 10 °C, 0.0 mm rain, wind up to 9 km/h. Thu 05.11.: 4 to 11 °C, 0.0 mm rain, wind up to 9 km/h. Fri 06.11.: 7 to 11 °C, 0.9 mm rain, wind up to 5 km/h. 0° 5° 10° 15°4 0 60 Today Tue 03.11. Wed 04.11. Thu 05.11. Fri 06.11.061218061218061218061218061218Clear Overcast Partly cloudy Overcast Partly cloudy Clear Partly cloudy Clear Partly cloudy Clear Partly cloudy Clear Clear Partly cloudy Overcast Drizzle Overcast Drizzle 141071112659866655563432
  • Temperature °C
  • Rain mm/h
  • Sunshine min/h
  • Wind km/h, arrow shows wind direction

Data: Eawag Alplakes, MeteoSwiss and DWD via Open-Meteo, FOEN. The forecast is an indicator, not a guarantee of visibility. Calculated on 02.11.2026 12:41

Location

The site

Practical

Getting there

46.4480° N, 6.8619° E

Emergency

After a diving accident, call Rega 1414 and say «diving accident». Rega connects you to the diving physician of DAN Suisse, around the clock and free of charge. Diving accident factsheet by DAN Suisse and Rega (PDF, German)

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