World Resorts USA Lake Geneva Weather

Lake Geneva sea water temperature

Current sea water temperature:
+32.0°F
Minimum sea water temperature in April: 44.1°F
Maximum sea water temperature in April: 32.0°F
Average sea water temperature in April: 33.7°F

Sea water temperature for the last 10 days:

April 28 32.0°F April 23 32.0°F
April 27 32.0°F April 22 32.0°F
April 26 32.0°F April 21 32.0°F
April 25 32.0°F April 20 32.0°F
April 24 32.0°F April 19 32.0°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, September and July.

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 32.0°F. The highest and lowest sea temperatures during the month were 32.0°F and 32.0°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 32.0°F. The highest and lowest sea temperatures during the month were 32.0°F and 32.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 32.0°F. The highest and lowest sea temperatures during the month were 32.0°F and 32.0°F.

Best time for vacation in Lake Geneva

Sunniest months:
September 15 days
August 13 days
October 13 days
Warmest months:
July 79.0 °F
August 78.5 °F
June 75.8 °F
Warmest sea temp:
August 51.0 °F
October 46.1 °F
July 43.5 °F
Coldest months:
January 26.3 °F
February 30.9 °F
December 33.6 °F
Rainiest months:
April 3 days
May 3 days
June 2 days
Windiest months:
March 11.3 mph
April 11.2 mph
November 10.9 mph

Lake Geneva on a weather map

Lake Geneva
+54°F
E 12 mph
Feels like: +50°F
Precip.: 0%
Places in USA:
Name
°F
+64°F
+75°F
+75°F
+79°F
+73°F
+88°F
+82°F
+70°F
+66°F
+68°F
+63°F
+90°F
+95°F
+86°F
+54°F
24 Hours Forecast
Lake Geneva
Local time: 12:41
April 28, tuesday
1500
61°F
E
12 mph
1800
63°F
E
11 mph
2100
54°F
SE
7 mph
April 29, wednesday
0000
48°F
SE
6 mph
0300
48°F
SE
2 mph
0600
43°F
SW
6 mph
0900
48°F
S
7 mph
1200
50°F
S
9 mph
Units of measurement: °C / °F