19.12
fri
fri
Day

46°F
E 2 mph
Precip.
0%
0%
Night

39°F
N 2 mph
Precip.
0%
0%
20.12
sat
sat
Day

45°F
S 1 mph
Precip.
0%
0%
Night

37°F
W 2 mph
Precip.
0%
0%
21.12
sun
sun
Day

41°F
W 1 mph
Precip.
0%
0%
Night

39°F
N 1 mph
Precip.
0%
0%
22.12
mon
mon
Day

43°F
SE 3 mph
Precip.
0%
0%
Night

37°F
SW 2 mph
Precip.
0%
0%
23.12
tue
tue
Day

39°F
SW 2 mph
Precip.
0%
0%
Night

36°F
SW 2 mph
Precip.
0%
0%
24.12
wed
wed
Day

37°F
S 2 mph
Precip.
0%
0%
Night

36°F
SW 3 mph
Precip.
0%
0%
25.12
thu
thu
Day

36°F
SW 8 mph
Precip.
77%
77%
Night

32°F
SW 7 mph
Precip.
71%
71%
26.12
fri
fri
Day

34°F
SW 6 mph
Precip.
53%
53%
Night

34°F
S 4 mph
Precip.
64%
64%
27.12
sat
sat
Day

34°F
S 4 mph
Precip.
57%
57%
Night

30°F
SW 5 mph
Precip.
57%
57%
28.12
sun
sun
Day

32°F
SW 5 mph
Precip.
27%
27%
Night

25°F
SW 5 mph
Precip.
0%
0%
29.12
mon
mon
Day

30°F
S 2 mph
Precip.
0%
0%
Night

23°F
E 1 mph
Precip.
0%
0%
30.12
tue
tue
Day

30°F
NW 2 mph
Precip.
0%
0%
Night

25°F
NW 1 mph
Precip.
0%
0%
31.12
wed
wed
Day

28°F
S 2 mph
Precip.
0%
0%
Night

25°F
NE 1 mph
Precip.
0%
0%
01.01
thu
thu
Day

36°F
E 2 mph
Precip.
0%
0%
Night

34°F
NE 5 mph
Precip.
48%
48%
sea water
temperature
temperature
| St Gallen |
monthly
weather
weather
| St Gallen |
current
weather
weather
| St Gallen |
7 days
forecast
forecast
| St Gallen |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 46.1°F. The highest and lowest sea temperatures during the month were 48.0°F and 44.6°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 43.3°F. The highest and lowest sea temperatures during the month were 46.6°F and 42.1°F.
Air temperature in St Gallen, °F
Precipitation total in St Gallen, in.
* Charts above show average data for the last 3 years.
Best time for vacation in St Gallen
St Gallen on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
St Gallen
Local time: 21:15
December 20, saturday
0000

39°F
N
2 mph
2 mph
0300

37°F
N
2 mph
2 mph
0600

36°F
N
2 mph
2 mph
0900

37°F
NW
2 mph
2 mph
1200

45°F
S
1 mph
1 mph
1500

45°F
S
1 mph
1 mph
1800

39°F
NW
2 mph
2 mph
2100

39°F
NW
2 mph
2 mph



























