Measurements:
°C
°F
CURRENT WEATHER
01:51
Winterthur
62°F
W 1 mph
Feels like: 62°F
Precip: 27%
World Resorts Switzerland Winterthur Weather

7 Day Weather Forecast

09.29
tue
DAY
70°F
S 2 mph
precip
13%
NIGHT
64°F
NW 2 mph
precip
26%
09.30
wed
DAY
72°F
E 2 mph
precip
1%
NIGHT
64°F
N 2 mph
precip
24%
10.01
thu
DAY
68°F
E 6 mph
precip
13%
NIGHT
58°F
E 2 mph
precip
70%
10.02
fri
DAY
62°F
SW 6 mph
precip
24%
NIGHT
64°F
W 1 mph
precip
34%
10.03
sat
DAY
62°F
SW 4 mph
precip
15%
NIGHT
58°F
NW 2 mph
precip
26%
10.04
sun
DAY
56°F
E 2 mph
precip
20%
NIGHT
54°F
NE 2 mph
precip
70%
10.05
mon
DAY
56°F
SW 2 mph
precip
22%
NIGHT
54°F
SW 3 mph
precip
38%

Winterthur Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Winterthur was 21.3°F. The maximum and minimum values were 18.8°F and 23.4°F respectively.

Winterthur on the Weather Map

Best Time to Visit Winterthur
The most sunny months:
August 15 days
July 13 days
April 12 days
The most warm months:
July 79.2 °F
August 79.0 °F
June 76.8 °F
Warmest sea temperature:
August 72.6 °F
July 71.9 °F
September 67.4 °F
The most cold months:
January 36.5 °F
December 38.4 °F
February 41.1 °F
The most rainy months:
May 7 days
June 6 days
July 6 days
The most windy months:
March 5 mph
May 5 mph
April 5 mph
more details