Current sea water temperature:
+68.9°F
| Minimum sea water temperature in May: | 69.6°F |
| Maximum sea water temperature in May: | 32.0°F |
| Average sea water temperature in May: | 56.0°F |
| more information | |
14 days
forecast
forecast
| St Gallen |
monthly
weather
weather
| St Gallen |
Sea water temperature for the last 10 days:
| May 28 | 68.9°F | May 23 | 61.7°F |
| May 27 | 69.6°F | May 22 | 60.3°F |
| May 26 | 66.9°F | May 21 | 59.2°F |
| May 25 | 64.4°F | May 20 | 58.1°F |
| May 24 | 63.5°F | May 19 | 57.9°F |
Monthly sea water temperature, °F
When is the warmest sea in St Gallen?
Based on the data about daily sea water temperature for the last three years the warmest sea in St Gallen was noticed in August, July and September.
Monthly Sea Temperatures in St Gallen, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 71.8°F. The highest and lowest sea temperatures during the month were 74.8°F and 67.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 72.9°F. The highest and lowest sea temperatures during the month were 76.3°F and 70.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 66.8°F. The highest and lowest sea temperatures during the month were 70.5°F and 63.3°F.
current
weather
weather
| St Gallen |
weather in
June
June
| St Gallen |
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: 19:48
May 28, thursday
2100
63°F
SW
2 mph
2 mph
May 29, friday
0000
59°F
N
1 mph
1 mph
0300
55°F
N
2 mph
2 mph
0600
54°F
NW
2 mph
2 mph
0900
63°F
SW
3 mph
3 mph
1200
70°F
SW
4 mph
4 mph
1500
75°F
SW
5 mph
5 mph
1800
73°F
SW
7 mph
7 mph
