World Resorts Switzerland Winterthur Weather

Winterthur sea water temperature

Current sea water temperature:
+75.7°F
Minimum sea water temperature in July: 79.7°F
Maximum sea water temperature in July: 32.0°F
Average sea water temperature in July: 69.6°F

Sea water temperature for the last 10 days:

July 21 75.7°F July 16 76.5°F
July 20 75.7°F July 15 76.8°F
July 19 76.6°F July 14 76.8°F
July 18 76.5°F July 13 76.6°F
July 17 75.7°F July 12 76.3°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 76.5°F. The highest and lowest sea temperatures during the month were 79.7°F and 74.8°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 74.1 °F
Warmest sea temp:
August 69.9 °F
July 69.7 °F
September 65.4 °F
Coldest months:
January 37.9 °F
December 39.5 °F
February 42.0 °F
Rainiest months:
May 7 days
July 7 days
June 6 days
Windiest months:
March 5.1 mph
May 5.1 mph
April 5.0 mph

Winterthur on a weather map

Winterthur
+73°F
S 4 mph
Feels like: +75°F
Precip.: 7%
Places in Switzerland:
Name
°F
+75°F
+68°F
+63°F
+73°F
+66°F
+79°F
+77°F
+57°F
+75°F
+73°F
+73°F
+68°F
+70°F
+48°F
+73°F
24 Hours Forecast
Winterthur
Local time: 17:50
July 21, tuesday
1800
73°F
S
4 mph
2100
63°F
SW
6 mph
July 22, wednesday
0000
55°F
SW
6 mph
0300
50°F
W
2 mph
0600
48°F
NW
2 mph
0900
63°F
SW
2 mph
1200
72°F
SW
4 mph
1500
77°F
S
2 mph
Units of measurement: °C / °F