World Resorts Switzerland Winterthur Weather

Winterthur sea water temperature

Current sea water temperature:
+42.8°F
Minimum sea water temperature in January: 45.0°F
Maximum sea water temperature in January: 32.0°F
Average sea water temperature in January: 41.5°F

Sea water temperature for the last 10 days:

January 8 42.8°F January 3 44.2°F
January 7 43.0°F January 2 44.6°F
January 6 43.2°F January 1 44.8°F
January 5 43.9°F December 31 44.4°F
January 4 44.1°F December 30 44.1°F

When is the warmest sea in Winterthur?

Based on the data about daily sea water temperature for the last three years the warmest sea in Winterthur was noticed in August, July and September.

Monthly Sea Temperatures in Winterthur, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 72.9°F. The highest and lowest sea temperatures during the month were 76.3°F and 70.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 73.9°F. The highest and lowest sea temperatures during the month were 78.4°F and 71.4°F.

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.

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 39.5 °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

Winterthur
+32°F
NE 4 mph
Feels like: +27°F
Precip.: 100%
Places in Switzerland:
Name
°F
+34°F
+34°F
+32°F
+27°F
+32°F
+32°F
+34°F
+36°F
+37°F
+37°F
+36°F
+32°F
+28°F
+16°F
+32°F
24 Hours Forecast
Winterthur
Local time: 12:19
January 08, thursday
1500
37°F
NE
12 mph
1800
39°F
NE
12 mph
2100
34°F
N
5 mph
January 09, friday
0000
34°F
N
5 mph
0300
34°F
N
4 mph
0600
41°F
E
21 mph
0900
39°F
NE
16 mph
1200
39°F
NE
14 mph
Units of measurement: °C / °F