World Resorts Switzerland St Gallen Weather

St Gallen Sea Temperature in September

Average sea water temperature in September:
+65.3°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 69.8°F. The highest and lowest sea temperatures during the month were 73.4°F and 65.8°F.

Monthly sea water temperature in St Gallen, °F

Which Switzerland resorts have warmest sea in September?

Place name September 2026 September 2025
Vevey 71.2°F 68.4°F
Gstaad 71.1°F 68.5°F
Verbier 71.1°F 68.5°F
Montreux 71.1°F 68.5°F
Lausanne 70.9°F 68.1°F
Lake Geneva 70.8°F 68.0°F
Geneva 70.3°F 66.9°F
Winterthur 70.0°F 67.6°F
Zurich 70.0°F 67.6°F
St Gallen 69.8°F 66.8°F

Best time for vacation in St Gallen

Sunniest months:
October 15 days
August 15 days
March 13 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 65.3 °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
12:12
St Gallen
+46°F
W 1 mph
Feels like: +46°F
Precip.: 7%
Places in Switzerland:
Name
°F
Berne
+48°F
Vevey
+50°F
Verbier
+39°F
Winterthur
+50°F
Gstaad
+52°F
Geneva
+50°F
Lake Geneva
+52°F
Lausanne
+48°F
Lugano
+57°F
Montreux
+50°F
St Gallen
+46°F
St Moritz
+41°F
Zermatt
+32°F
Zurich
+48°F
Spitz
+52°F
all places
24 Hours Forecast
St Gallen
Local time: 12:12
October 30, friday
1500
54°F
SW
6 mph
1800
48°F
SW
11 mph
2100
45°F
W
2 mph
October 31, saturday
0000
41°F
E
1 mph
0300
39°F
SE
2 mph
0600
39°F
SE
2 mph
0900
41°F
S
2 mph
1200
46°F
W
2 mph
Units of measurement: °C / °F