Current sea water temperature:
+76.3°F
| Minimum sea water temperature in August: | 78.4°F |
| Maximum sea water temperature in August: | 32.0°F |
| Average sea water temperature in August: | 69.9°F |
| more information | |
14 days
forecast
forecast
| Lake Geneva |
monthly
weather
weather
| Lake Geneva |
Sea water temperature for the last 10 days:
| August 7 | 76.3°F | August 2 | 75.2°F |
| August 6 | 76.8°F | August 1 | 75.0°F |
| August 5 | 76.5°F | July 31 | 73.0°F |
| August 4 | 76.3°F | July 30 | 73.4°F |
| August 3 | 76.6°F | July 29 | 72.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Lake Geneva?
Based on the data about daily sea water temperature for the last three years the warmest sea in Lake Geneva was noticed in August, July and September.
Monthly Sea Temperatures in Lake Geneva, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 72.5°F. The highest and lowest sea temperatures during the month were 75.6°F and 69.8°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 74.7°F. The highest and lowest sea temperatures during the month were 77.2°F and 72.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 68.0°F. The highest and lowest sea temperatures during the month were 71.2°F and 65.1°F.
current
weather
weather
| Lake Geneva |
weather in
August
August
| Lake Geneva |
Best time for vacation in Lake Geneva
Lake Geneva on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
Lake Geneva
Local time: 10:50
August 07, friday
1200
77°F
SW
6 mph
6 mph
1500
82°F
SW
4 mph
4 mph
1800
82°F
S
2 mph
2 mph
2100
68°F
S
4 mph
4 mph
August 08, saturday
0000
63°F
SW
3 mph
3 mph
0300
59°F
SW
3 mph
3 mph
0600
57°F
SW
3 mph
3 mph
0900
70°F
S
4 mph
4 mph
