World Resorts Switzerland Lake Geneva Weather

Lake Geneva Sea Temperature in August

Average sea water temperature in August:
+70.1°F
Minimum sea water temperature in August: 78.4°F
Maximum sea water temperature in August: 32.0°F

Daily sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 75.9°F. The highest and lowest sea temperatures during the month were 77.7°F and 73.2°F.

Monthly sea water temperature in Lake Geneva, °F

Which Switzerland resorts have warmest sea in August?

Place name August 2026 August 2025
Winterthur 76.9°F 72.9°F
Zurich 76.9°F 72.9°F
Montreux 76.4°F 73.4°F
Gstaad 76.4°F 73.4°F
Verbier 76.4°F 73.4°F
Vevey 76.3°F 73.2°F
Lake Geneva 75.9°F 72.5°F
St Gallen 75.8°F 71.8°F
Lausanne 75.5°F 72.6°F
Geneva 75.5°F 71.9°F

Best time for vacation in Lake Geneva

Sunniest months:
August 18 days
July 16 days
September 16 days
Warmest months:
August 74.6 °F
July 74.1 °F
June 69.8 °F
Warmest sea temp:
August 70.2 °F
July 69.0 °F
September 65.8 °F
Coldest months:
January 38.6 °F
December 41.2 °F
February 42.1 °F
Rainiest months:
June 7 days
May 7 days
December 6 days
Windiest months:
January 6.4 mph
February 6.0 mph
December 5.8 mph

Lake Geneva on a weather map

Current weather
10:52
Lake Geneva
+59°F
E 5 mph
Feels like: +59°F
Precip.: 61%
Places in Switzerland:
Name
°F
Berne
+68°F
Vevey
+61°F
Verbier
+57°F
Winterthur
+66°F
Gstaad
+63°F
Geneva
+59°F
Lake Geneva
+59°F
Interlaken
+59°F
Lausanne
+63°F
Lugano
+73°F
Lucerne
+68°F
Montreux
+61°F
St Gallen
+70°F
Zurich
+68°F
Spitz
+64°F
all places
24 Hours Forecast
Lake Geneva
Local time: 10:52
August 28, friday
1200
59°F
E
5 mph
1500
57°F
E
4 mph
1800
55°F
NE
4 mph
2100
61°F
N
5 mph
August 29, saturday
0000
57°F
NW
5 mph
0300
55°F
NW
4 mph
0600
54°F
NW
4 mph
0900
54°F
N
1 mph
Units of measurement: °C / °F