World Resorts Switzerland Winterthur Weather

Winterthur Sea Temperature in September

Average sea water temperature in September:
+65.4°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:
2025
2024
2023

The average sea water temperature in September of 2025 was 67.6°F. The highest and lowest sea temperatures during the month were 71.1°F and 63.5°F.

Monthly sea water temperature in Winterthur, °F

Which Switzerland resorts have warmest sea in September?

Place name September 2025 September 2024
Montreux 68.5°F 68.9°F
Gstaad 68.5°F 68.9°F
Verbier 68.5°F 68.9°F
Vevey 68.4°F 68.9°F
Lausanne 68.1°F 68.7°F
Lake Geneva 68.0°F 68.4°F
Zurich 67.6°F 68.7°F
Winterthur 67.6°F 68.7°F
Geneva 66.9°F 67.2°F
St Gallen 66.8°F 67.8°F

Best time for vacation in Winterthur

Sunniest months:
August 15 days
July 13 days
April 12 days
Warmest months:
August 76.0 °F
July 76.0 °F
June 73.9 °F
Warmest sea temp:
August 69.9 °F
July 69.2 °F
September 65.4 °F
Coldest months:
January 38.0 °F
December 39.4 °F
February 41.7 °F
Rainiest months:
May 7 days
June 7 days
July 7 days
Windiest months:
March 5.2 mph
May 5.1 mph
April 5.1 mph

Winterthur on a weather map

Current weather
01:12
Winterthur
+32°F
SW 11 mph
Feels like: +23°F
Precip.: 0%
Places in Switzerland:
Name
°F
Basle
+30°F
Berne
+30°F
Vevey
+30°F
Verbier
+21°F
Winterthur
+32°F
Gstaad
+21°F
Geneva
+37°F
Lake Geneva
+36°F
Interlaken
+27°F
Lausanne
+36°F
Lugano
+36°F
Lucerne
+34°F
Montreux
+30°F
St Gallen
+32°F
Zurich
+32°F
all places
24 Hours Forecast
Winterthur
Local time: 01:12
December 24, wednesday
0300
34°F
SW
11 mph
0600
34°F
SW
11 mph
0900
32°F
SW
14 mph
1200
34°F
SW
14 mph
1500
32°F
SW
15 mph
1800
30°F
SW
15 mph
2100
30°F
SW
14 mph
December 25, thursday
0000
30°F
SW
11 mph
Units of measurement: °C / °F