30.12
tue
tue
Day
30°F
SW 4 mph
Precip.
70%
70%
Night
25°F
SW 4 mph
Precip.
72%
72%
31.12
wed
wed
Day
28°F
SW 4 mph
Precip.
0%
0%
Night
23°F
NE 2 mph
Precip.
0%
0%
01.01
thu
thu
Day
34°F
E 4 mph
Precip.
0%
0%
Night
28°F
NE 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
34°F
E 7 mph
Precip.
0%
0%
Night
32°F
NE 3 mph
Precip.
0%
0%
03.01
sat
sat
Day
32°F
SE 2 mph
Precip.
100%
100%
Night
25°F
SW 8 mph
Precip.
100%
100%
04.01
sun
sun
Day
23°F
W 2 mph
Precip.
53%
53%
Night
9°F
N 4 mph
Precip.
24%
24%
05.01
mon
mon
Day
16°F
SE 2 mph
Precip.
0%
0%
Night
5°F
N 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| St Gallen |
monthly
weather
weather
| St Gallen |
current
weather
weather
| St Gallen |
14 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 45.7°F. The highest and lowest sea temperatures during the month were 48.0°F and 43.9°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: 05:32
December 30, tuesday
0600
25°F
SW
2 mph
2 mph
0900
27°F
SW
1 mph
1 mph
1200
30°F
SW
4 mph
4 mph
1500
32°F
SW
4 mph
4 mph
1800
28°F
SW
6 mph
6 mph
2100
27°F
SW
6 mph
6 mph
December 31, wednesday
0000
25°F
SW
4 mph
4 mph
0300
25°F
SW
5 mph
5 mph
