Lake GenevaWater Level & Temperature
Lake Geneva water level & water temperature
Lake Geneva water level is updated continuously from USGS gauge 423525088260400 (NAVD88). Typical level elevation is 864 ft. Live reading, 7-day trend, and multi-year history appear below as the data loads.
Lake Geneva water temperature by month
Lake Geneva surface water temperature averages from about 36°F in January to 80°F in July over the year, based on a 40-year USGS model (1980–2020). Cold-water caution applies in roughly half the year, when the typical temperature is below 60°F.
Jan
36°
Feb
36°
Mar
40°
Apr
51°
May
64°
Jun
75°
Jul
80°
Aug
78°
Sep
70°
Oct
56°
Nov
44°
Dec
37°
Typical surface temperatures (°F), modeled historical averages (USGS 185k-lake dataset, 1980–2020). Colors flag cold-water risk: blue/amber/red = cool, caution, danger. Live and recent readings appear above where a sensor is available.