World Resorts Switzerland Geneva Weather

Geneva Sea Temperature in December

Average sea water temperature in December:
+51.2°F
Minimum sea water temperature in December: 55.0°F
Maximum sea water temperature in December: 47.5°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 49.5°F. The highest and lowest sea temperatures during the month were 51.8°F and 47.8°F.

Monthly sea water temperature in Geneva, °F

Which Switzerland resorts have warmest sea in December?

Place name December 2025 December 2024
Geneva 49.5°F 49.5°F
Vevey 48.9°F 49.0°F
Lausanne 48.9°F 48.9°F
Montreux 48.9°F 48.9°F
Gstaad 48.9°F 48.9°F
Verbier 48.9°F 48.9°F
Lake Geneva 48.9°F 49.0°F
St Gallen 46.0°F 46.0°F
Winterthur 45.7°F 45.8°F
Zurich 45.7°F 45.8°F

Best time for vacation in Geneva

Sunniest months:
August 19 days
July 17 days
September 15 days
Warmest months:
August 76.7 °F
July 76.2 °F
June 72.6 °F
Warmest sea temp:
August 67.7 °F
July 67.0 °F
September 64.4 °F
Coldest months:
January 38.4 °F
December 40.6 °F
February 42.4 °F
Rainiest months:
May 8 days
June 7 days
July 6 days
Windiest months:
January 5.1 mph
February 4.9 mph
April 4.8 mph

Geneva on a weather map

Current weather
03:08
Geneva
+36°F
SW 9 mph
Feels like: +30°F
Precip.: 83%
Places in Switzerland:
Name
°F
Basle
+34°F
Berne
+30°F
Vevey
+27°F
Verbier
+19°F
Winterthur
+34°F
Gstaad
+19°F
Geneva
+36°F
Lake Geneva
+34°F
Interlaken
+25°F
Lausanne
+34°F
Lugano
+37°F
Lucerne
+32°F
Montreux
+28°F
St Gallen
+32°F
Zurich
+34°F
all places
24 Hours Forecast
Geneva
Local time: 03:08
December 24, wednesday
0600
36°F
SW
13 mph
0900
37°F
SW
15 mph
1200
37°F
SW
16 mph
1500
36°F
SW
16 mph
1800
32°F
SW
13 mph
2100
32°F
SW
11 mph
December 25, thursday
0000
32°F
SW
7 mph
0300
32°F
SW
6 mph
Units of measurement: °C / °F