World Resorts Switzerland St Gallen Weather

St Gallen Sea Temperature in September

Average sea water temperature in September:
+65.2°F
Minimum sea water temperature in September: 73.9°F
Maximum sea water temperature in September: 32.0°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 71.3°F. The highest and lowest sea temperatures during the month were 73.4°F and 68.4°F.

Monthly sea water temperature in St Gallen, °F

Which Switzerland resorts have warmest sea in September?

Place name September 2026 September 2025
Vevey 73.2°F 68.4°F
Gstaad 73.1°F 68.5°F
Verbier 73.1°F 68.5°F
Montreux 73.1°F 68.5°F
Lausanne 72.7°F 68.1°F
Lake Geneva 72.5°F 68.0°F
Geneva 71.7°F 66.9°F
Winterthur 71.7°F 67.6°F
Zurich 71.6°F 67.6°F
St Gallen 71.3°F 66.8°F

Best time for vacation in St Gallen

Sunniest months:
August 15 days
October 15 days
September 14 days
Warmest months:
August 73.2 °F
July 73.0 °F
June 70.8 °F
Warmest sea temp:
August 70.1 °F
July 69.4 °F
September 65.0 °F
Coldest months:
January 37.2 °F
December 39.9 °F
February 41.0 °F
Rainiest months:
July 10 days
May 9 days
June 9 days
Windiest months:
January 4.9 mph
February 4.8 mph
March 4.7 mph

St Gallen on a weather map

Current weather
17:45
St Gallen
+57°F
W 2 mph
Feels like: +59°F
Precip.: 14%
Places in Switzerland:
Name
°F
Berne
+63°F
Vevey
+54°F
Verbier
+48°F
Winterthur
+63°F
Gstaad
+55°F
Geneva
+66°F
Lake Geneva
+59°F
Interlaken
+48°F
Lausanne
+63°F
Lugano
+61°F
Montreux
+54°F
St Gallen
+57°F
Zermatt
+45°F
Zurich
+63°F
Spitz
+54°F
all places
24 Hours Forecast
St Gallen
Local time: 17:45
September 17, thursday
1800
57°F
W
2 mph
2100
64°F
N
5 mph
September 18, friday
0000
63°F
N
4 mph
0300
61°F
NE
4 mph
0600
59°F
NE
1 mph
0900
52°F
SE
2 mph
1200
57°F
SE
2 mph
1500
61°F
S
2 mph
Units of measurement: °C / °F