World Resorts Switzerland St Gallen Weather

St Gallen Sea Temperature in December

Average sea water temperature in December:
+45.6°F
Minimum sea water temperature in December: 50.4°F
Maximum sea water temperature in December: 41.9°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 45.9°F. The highest and lowest sea temperatures during the month were 48.0°F and 44.6°F.

Monthly sea water temperature in St Gallen, °F

Which Switzerland resorts have warmest sea in December?

Place name December 2025 December 2024
Geneva 49.5°F 49.5°F
Vevey 48.8°F 49.0°F
Montreux 48.8°F 48.9°F
Lausanne 48.8°F 48.9°F
Gstaad 48.8°F 48.9°F
Verbier 48.8°F 48.9°F
Lake Geneva 48.8°F 49.0°F
St Gallen 45.9°F 46.0°F
Winterthur 45.6°F 45.8°F
Zurich 45.6°F 45.8°F

Best time for vacation in St Gallen

Sunniest months:
August 16 days
October 15 days
September 14 days
Warmest months:
August 73.2 °F
July 72.9 °F
June 70.7 °F
Warmest sea temp:
August 69.7 °F
July 69.0 °F
September 65.0 °F
Coldest months:
January 37.4 °F
December 39.8 °F
February 40.9 °F
Rainiest months:
July 10 days
May 9 days
June 9 days
Windiest months:
January 5.0 mph
December 4.8 mph
February 4.8 mph

St Gallen on a weather map

Current weather
07:30
St Gallen
+28°F
S 2 mph
Feels like: +28°F
Precip.: 0%
Places in Switzerland:
Name
°F
Basle
+30°F
Berne
+27°F
Vevey
+28°F
Verbier
+18°F
Winterthur
+28°F
Gstaad
+19°F
Geneva
+32°F
Lake Geneva
+32°F
Interlaken
+23°F
Lausanne
+32°F
Lugano
+32°F
Lucerne
+28°F
Montreux
+28°F
St Gallen
+28°F
Zurich
+28°F
all places
24 Hours Forecast
St Gallen
Local time: 07:30
December 25, thursday
0900
28°F
S
2 mph
1200
34°F
S
2 mph
1500
36°F
S
3 mph
1800
30°F
SW
1 mph
2100
30°F
SW
1 mph
December 26, friday
0000
30°F
N
0 mph
0300
28°F
W
2 mph
0600
30°F
SW
2 mph
Units of measurement: °C / °F