World Resorts USA Lake Geneva Weather

Lake Geneva 14 Days Forecast

21.07
tue
Day
82°F
SE 16 mph
Precip.
4%
Night
59°F
S 11 mph
Precip.
10%
22.07
wed
Day
66°F
S 11 mph
Precip.
3%
Night
55°F
E 7 mph
Precip.
9%
23.07
thu
Day
73°F
E 7 mph
Precip.
1%
Night
61°F
E 7 mph
Precip.
9%
24.07
fri
Day
75°F
NE 6 mph
Precip.
3%
Night
61°F
NE 6 mph
Precip.
16%
25.07
sat
Day
75°F
NE 8 mph
Precip.
4%
Night
66°F
NE 7 mph
Precip.
15%
26.07
sun
Day
82°F
NE 14 mph
Precip.
5%
Night
73°F
E 11 mph
Precip.
17%
27.07
mon
Day
81°F
SW 10 mph
Precip.
6%
Night
61°F
SW 6 mph
Precip.
11%
28.07
tue
Day
75°F
SW 8 mph
Precip.
2%
Night
61°F
W 3 mph
Precip.
7%
29.07
wed
Day
79°F
N 8 mph
Precip.
5%
Night
68°F
N 7 mph
Precip.
19%
30.07
thu
Day
84°F
N 17 mph
Precip.
3%
Night
73°F
N 9 mph
Precip.
22%
31.07
fri
Day
84°F
S 16 mph
Precip.
1%
Night
66°F
SE 7 mph
Precip.
5%
01.08
sat
Day
84°F
NW 2 mph
Precip.
2%
Night
68°F
W 7 mph
Precip.
6%
02.08
sun
Day
88°F
N 17 mph
Precip.
3%
Night
86°F
NE 17 mph
Precip.
7%
03.08
mon
Day
75°F
SE 11 mph
Precip.
18%
Night
68°F
SE 7 mph
Precip.
4%

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 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 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.

Air temperature in Lake Geneva, °F

Precipitation total in Lake Geneva, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Lake Geneva

Sunniest months:
September 15 days
June 13 days
August 13 days
Warmest months:
July 79.0 °F
August 78.5 °F
June 76.0 °F
Warmest sea temp:
August 51.0 °F
October 46.1 °F
July 40.6 °F
Coldest months:
January 26.3 °F
February 30.9 °F
December 33.6 °F
Rainiest months:
May 3 days
April 3 days
June 2 days
Windiest months:
March 11.3 mph
April 11.1 mph
November 10.9 mph

Lake Geneva on a weather map

Lake Geneva
+77°F
SE 15 mph
Feels like: +79°F
Precip.: 6%
Places in USA:
Name
°F
+73°F
+81°F
+77°F
+86°F
+66°F
+86°F
+72°F
+84°F
+75°F
+68°F
+55°F
+68°F
+84°F
+79°F
+75°F
24 Hours Forecast
Lake Geneva
Local time: 08:25
July 21, tuesday
0900
77°F
SE
15 mph
1200
82°F
SE
16 mph
1500
84°F
SE
15 mph
1800
75°F
S
13 mph
2100
63°F
S
7 mph
July 22, wednesday
0000
59°F
S
11 mph
0300
50°F
S
7 mph
0600
46°F
SE
7 mph
Units of measurement: °C / °F