World Resorts Switzerland Winterthur Weather

Winterthur Sea Temperature in September

Average sea water temperature in September:
+65.7°F
Minimum sea water temperature in September: 75.0°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 71.1°F. The highest and lowest sea temperatures during the month were 74.1°F and 69.1°F.

Monthly sea water temperature in Winterthur, °F

Which Switzerland resorts have warmest sea in September?

Place name September 2026 September 2025
Vevey 72.2°F 68.4°F
Gstaad 72.1°F 68.5°F
Verbier 72.1°F 68.5°F
Montreux 72.1°F 68.5°F
Lausanne 71.8°F 68.1°F
Lake Geneva 71.6°F 68.0°F
Winterthur 71.1°F 67.6°F
Zurich 71.1°F 67.6°F
Geneva 70.9°F 66.9°F
St Gallen 70.7°F 66.8°F

Best time for vacation in Winterthur

Sunniest months:
August 15 days
July 13 days
April 12 days
Warmest months:
July 76.3 °F
August 76.1 °F
June 74.1 °F
Warmest sea temp:
August 70.3 °F
July 69.7 °F
September 65.7 °F
Coldest months:
January 37.9 °F
December 39.5 °F
February 42.0 °F
Rainiest months:
May 7 days
June 6 days
July 6 days
Windiest months:
March 5.1 mph
May 5.1 mph
April 5.0 mph

Winterthur on a weather map

Current weather
09:59
Winterthur
+43°F
SW 2 mph
Feels like: +43°F
Precip.: 10%
Places in Switzerland:
Name
°F
Berne
+45°F
Vevey
+48°F
Verbier
+46°F
Winterthur
+43°F
Gstaad
+52°F
Geneva
+50°F
Lake Geneva
+50°F
Interlaken
+46°F
Lausanne
+50°F
Lugano
+54°F
Montreux
+48°F
St Gallen
+43°F
Zermatt
+41°F
Zurich
+45°F
Spitz
+48°F
all places
24 Hours Forecast
Winterthur
Local time: 09:59
September 23, wednesday
1200
57°F
S
3 mph
1500
64°F
SE
2 mph
1800
66°F
N
0 mph
2100
57°F
N
5 mph
September 24, thursday
0000
54°F
N
3 mph
0300
52°F
N
4 mph
0600
50°F
N
2 mph
0900
52°F
E
1 mph
Units of measurement: °C / °F