Current sea water temperature:
+58.6°F
| Minimum sea water temperature in May: | 69.1°F |
| Maximum sea water temperature in May: | 32.0°F |
| Average sea water temperature in May: | 56.1°F |
| more information | |
14 days
forecast
forecast
| Winterthur |
monthly
weather
weather
| Winterthur |
Sea water temperature for the last 10 days:
| May 19 | 58.6°F | May 14 | 59.2°F |
| May 18 | 58.6°F | May 13 | 59.5°F |
| May 17 | 58.6°F | May 12 | 59.5°F |
| May 16 | 58.8°F | May 11 | 59.9°F |
| May 15 | 59.0°F | May 10 | 59.9°F |
Monthly sea water temperature, °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.
current
weather
weather
| Winterthur |
weather in
May
May
| Winterthur |
Best time for vacation in Winterthur
Winterthur on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
Winterthur
Local time: 18:38
May 19, tuesday
2100
50°F
N
3 mph
3 mph
May 20, wednesday
0000
45°F
N
4 mph
4 mph
0300
46°F
N
2 mph
2 mph
0600
46°F
NE
3 mph
3 mph
0900
52°F
NE
3 mph
3 mph
1200
63°F
E
6 mph
6 mph
1500
68°F
E
8 mph
8 mph
1800
66°F
E
9 mph
9 mph
