Measurements:
°C
°F
Geneva
54°F
SW 6 mph
Feels like: 52°F
Precip: 24%
World Resorts Switzerland Geneva Weather

Geneva Sea Water Temperature

Current Sea Water Temperature:
+64.0°F
Maximum Sea Water Temperature in October: 70.2°F
Minimum Sea Water Temperature in October: 30.0°F
Average water temperature in October: 59.9°F

Sea Water Temperature for the Last 10 Days:

October 19 64.0°F October 14 65.4°F
October 18 64.6°F October 13 65.4°F
October 17 65.4°F October 12 67.0°F
October 16 64.0°F October 11 67.0°F
October 15 65.4°F October 10 67.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Geneva was 78.0°F. The maximum and minimum values were 72.8°F and 81.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Geneva was 78.8°F. The maximum and minimum values were 75.8°F and 80.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Geneva was 72.6°F. The maximum and minimum values were 68.6°F and 78.0°F respectively.

Best Time to Visit Geneva
The most sunny months:
August 19 days
July 18 days
September 15 days
The most warm months:
August 79.9 °F
July 79.5 °F
June 75.4 °F
Warmest sea temperature:
August 70.2 °F
July 69.5 °F
September 66.4 °F
The most cold months:
January 37.2 °F
December 39.9 °F
February 41.9 °F
The most rainy months:
May 7 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
F°
Berne +54
Geneva +54
Gstaad +58
Lake Geneva +58
Lausanne +54
Lugano +68
Montreux +58
Spitz +60
St Gallen +54
St Moritz +48
Verbier +42
Vevey +58
Winterthur +56
Zermatt +32
Zurich +54
24 Hours Weather Forecast
Geneva
Local time: 11:06
19 oct, monday
1200 54°F
SW
6 mph
1500 62°F
SW
6 mph
1800 58°F
SW
6 mph
2100 52°F
SW
6 mph
20 oct, tuesday
0000 50°F
SW
4 mph
0300 50°F
SW
5 mph
0600 52°F
NW
1 mph
0900 54°F
S
2 mph