21.12
sun
sun
Day
43°F
SW 2 mph
Precip.
0%
0%
Night
37°F
NW 1 mph
Precip.
0%
0%
22.12
mon
mon
Day
43°F
SW 1 mph
Precip.
0%
0%
Night
36°F
W 1 mph
Precip.
0%
0%
23.12
tue
tue
Day
39°F
SW 4 mph
Precip.
0%
0%
Night
34°F
SW 2 mph
Precip.
0%
0%
24.12
wed
wed
Day
36°F
SW 15 mph
Precip.
74%
74%
Night
27°F
SW 11 mph
Precip.
81%
81%
25.12
thu
thu
Day
32°F
S 3 mph
Precip.
0%
0%
Night
27°F
SE 1 mph
Precip.
0%
0%
26.12
fri
fri
Day
32°F
S 3 mph
Precip.
0%
0%
Night
28°F
SW 2 mph
Precip.
0%
0%
27.12
sat
sat
Day
34°F
SW 4 mph
Precip.
0%
0%
Night
27°F
SW 2 mph
Precip.
0%
0%
28.12
sun
sun
Day
34°F
SW 3 mph
Precip.
0%
0%
Night
30°F
NE 3 mph
Precip.
0%
0%
29.12
mon
mon
Day
34°F
E 3 mph
Precip.
100%
100%
Night
34°F
E 4 mph
Precip.
100%
100%
30.12
tue
tue
Day
36°F
SE 2 mph
Precip.
45%
45%
Night
30°F
NE 2 mph
Precip.
84%
84%
31.12
wed
wed
Day
32°F
SW 2 mph
Precip.
57%
57%
Night
27°F
SW 3 mph
Precip.
28%
28%
01.01
thu
thu
Day
28°F
S 2 mph
Precip.
0%
0%
Night
25°F
N 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
32°F
E 2 mph
Precip.
0%
0%
Night
27°F
NE 4 mph
Precip.
0%
0%
03.01
sat
sat
Day
36°F
NE 9 mph
Precip.
100%
100%
Night
36°F
NE 6 mph
Precip.
100%
100%
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 46.0°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: 05:11
December 21, sunday
0600
36°F
NW
1 mph
1 mph
0900
37°F
W
1 mph
1 mph
1200
43°F
SW
2 mph
2 mph
1500
45°F
SW
2 mph
2 mph
1800
39°F
NW
1 mph
1 mph
2100
37°F
NW
2 mph
2 mph
December 22, monday
0000
37°F
NW
1 mph
1 mph
0300
36°F
N
1 mph
1 mph
