23.09
wed
wed
Day
57°F
SW 4 mph
Precip.
2%
2%
Night
54°F
NW 2 mph
Precip.
7%
7%
24.09
thu
thu
Day
63°F
E 3 mph
Precip.
11%
11%
Night
54°F
SW 4 mph
Precip.
25%
25%
25.09
fri
fri
Day
59°F
SW 6 mph
Precip.
6%
6%
Night
50°F
W 2 mph
Precip.
19%
19%
26.09
sat
sat
Day
63°F
SE 2 mph
Precip.
2%
2%
Night
55°F
NW 2 mph
Precip.
9%
9%
27.09
sun
sun
Day
66°F
NE 3 mph
Precip.
5%
5%
Night
59°F
NW 2 mph
Precip.
7%
7%
28.09
mon
mon
Day
68°F
N 1 mph
Precip.
6%
6%
Night
61°F
N 2 mph
Precip.
20%
20%
29.09
tue
tue
Day
68°F
N 1 mph
Precip.
4%
4%
Night
61°F
NW 2 mph
Precip.
22%
22%
sea water
temperature
temperature
| Winterthur |
monthly
weather
weather
| Winterthur |
current
weather
weather
| Winterthur |
14 days
forecast
forecast
| Winterthur |
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.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 58.4°F. The highest and lowest sea temperatures during the month were 63.3°F and 53.2°F.
Air temperature in Winterthur, °F
Precipitation total in Winterthur, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Winterthur
Winterthur on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
Winterthur
Local time: 10:26
September 23, wednesday
1200
57°F
SW
4 mph
4 mph
1500
64°F
S
3 mph
3 mph
1800
63°F
SW
1 mph
1 mph
2100
57°F
NW
4 mph
4 mph
September 24, thursday
0000
54°F
NW
2 mph
2 mph
0300
52°F
N
3 mph
3 mph
0600
48°F
N
1 mph
1 mph
0900
50°F
NE
1 mph
1 mph
