Measurements:
°C
°F
Geneva
36°F
SW 4 mph
Feels like: 32°F
Precip: 0%
World Resorts Switzerland Geneva Weather

Geneva Sea Water Temperature

Current Sea Water Temperature:
+46.0°F
Maximum Sea Water Temperature in February: 48.6°F
Minimum Sea Water Temperature in February: 30.0°F
Average water temperature in February: 45.7°F

Sea Water Temperature for the Last 10 Days:

February 02 46.0°F January 28 44.4°F
February 01 45.8°F January 27 44.0°F
January 31 45.4°F January 26 45.2°F
January 30 45.4°F January 25 44.8°F
January 29 44.8°F January 24 44.6°F

When is the Warmest Sea for Geneva?

According to our data for the last three years for Geneva the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Geneva was 74.3°F. The maximum and minimum values were 70.2°F and 77.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Geneva was 74.4°F. The maximum and minimum values were 70.4°F and 79.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Geneva was 68.7°F. The maximum and minimum values were 65.6°F and 71.6°F respectively.

Best Time to Visit Geneva
The most sunny months:
August 19 days
July 17 days
September 15 days
The most warm months:
August 79.7 °F
July 79.1 °F
June 75.1 °F
Warmest sea temperature:
August 69.6 °F
July 68.9 °F
September 66.0 °F
The most cold months:
January 37.2 °F
December 39.9 °F
February 41.6 °F
The most rainy months:
May 8 days
June 7 days
July 6 days
The most windy months:
January 5 mph
February 4 mph
April 4 mph

Geneva on the Weather Map

Switzerland Resorts:
NAME
Basle +38
Berne +30
Geneva +36
Gstaad +14
Lake Geneva +38
Lausanne +38
Lucerne +26
Lugano +36
Montreux +24
St Gallen +32
St Moritz +12
Verbier +10
Vevey +24
Winterthur +32
Zurich +32
24 Hours Weather Forecast
Geneva
Local time: 00:47
03 feb, tuesday
0300 34°F
SW
4 mph
0600 34°F
NW
4 mph
0900 34°F
NE
7 mph
1200 38°F
N
3 mph
1500 44°F
NE
3 mph
1800 36°F
S
1 mph
2100 32°F
SW
1 mph
04 feb, wednesday
0000 30°F
W
1 mph