Current Sea Water Temperature:
+78.0°F
| Maximum Sea Water Temperature in July: | 80.2°F |
| Minimum Sea Water Temperature in July: | 30.0°F |
| Average water temperature in July: | 70.8°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 08 | 78.0°F | July 03 | 78.4°F |
| July 07 | 77.8°F | July 02 | 78.0°F |
| July 06 | 78.2°F | July 01 | 80.2°F |
| July 05 | 77.0°F | June 30 | 81.0°F |
| July 04 | 76.6°F | June 29 | 81.8°F |
When is the Warmest Sea for Lake Geneva?
According to our data for the last three years for Lake Geneva the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Lake Geneva was 75.0°F. The maximum and minimum values were 72.0°F and 78.4°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Lake Geneva was 74.3°F. The maximum and minimum values were 71.6°F and 77.0°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Lake Geneva was 70.0°F. The maximum and minimum values were 66.8°F and 73.6°F respectively.
Switzerland Resorts:
NAME
F°
| Basle |  |
+66 |
| Berne |  |
+62 |
| Geneva | |
+66 |
| Gstaad | |
+50 |
| Interlaken | |
+56 |
| Lake Geneva | |
+66 |
| Lausanne | |
+70 |
| Lucerne | |
+64 |
| Lugano | |
+60 |
| Montreux | |
+60 |
| St Gallen | |
+64 |
| Verbier | |
+46 |
| Vevey | |
+60 |
| Winterthur | |
+62 |
| Zurich | |
+66 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Lake Geneva
Local time: 00:33
09 jul, thursday
| 0300 |  |
64°F | SW 5 mph |
| 0600 |  |
60°F | SW 5 mph |
| 0900 | |
76°F | SW 7 mph |
| 1200 | |
84°F | SW 7 mph |
| 1500 | |
90°F | SW 8 mph |
| 1800 | |
90°F | SW 11 mph |
| 2100 | |
74°F | SW 7 mph |
10 jul, friday
| 0000 | |
66°F | SW 5 mph |