02.09
wed
wed
Day
68°F
E 4 mph
Precip.
12%
12%
Night
61°F
N 2 mph
Precip.
8%
8%
03.09
thu
thu
Day
70°F
E 4 mph
Precip.
1%
1%
Night
63°F
N 4 mph
Precip.
6%
6%
04.09
fri
fri
Day
73°F
S 1 mph
Precip.
3%
3%
Night
68°F
N 4 mph
Precip.
6%
6%
05.09
sat
sat
Day
70°F
E 3 mph
Precip.
4%
4%
Night
63°F
SW 3 mph
Precip.
28%
28%
06.09
sun
sun
Day
66°F
SW 7 mph
Precip.
6%
6%
Night
61°F
S 2 mph
Precip.
29%
29%
07.09
mon
mon
Day
70°F
E 4 mph
Precip.
2%
2%
Night
63°F
N 2 mph
Precip.
4%
4%
08.09
tue
tue
Day
72°F
E 2 mph
Precip.
1%
1%
Night
66°F
N 2 mph
Precip.
14%
14%
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:
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.
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: 22:55
September 03, thursday
0000
61°F
N
2 mph
2 mph
0300
57°F
N
1 mph
1 mph
0600
55°F
N
2 mph
2 mph
0900
57°F
NE
1 mph
1 mph
1200
70°F
E
4 mph
4 mph
1500
75°F
E
6 mph
6 mph
1800
73°F
E
4 mph
4 mph
2100
68°F
N
3 mph
3 mph
