World Resorts Switzerland Winterthur Weather

Winterthur weather in August

Weather in Winterthur: August

Average day temperature: 76.0°F
Average night temperature: 56.0°F
Sea water temperature: 69.8°F
Number of sunny days: 15 days
Day length: 13.4 - 14.9 hours
Number of rainy days: 5 days
Precipitation totals: 3.0 in.

Air temperature in August, °F

Show year:
2025
2024
2023

The highest day temperature during August of 2025 was 90°F. At the same time the lowest night temperature was 47°F. Daily and nightly averages during August were 75.0°F and 56.6°F.

Sea water temperature in Winterthur 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.

Sunny, partly cloudy and cloudy days

Mostly all days in August are sunny but cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Winterthur in August is 3.3 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 3.7 mph It makes August lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 8.2.

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 73.9 °F
Warmest sea temp:
August 69.9 °F
July 69.2 °F
September 65.4 °F
Coldest months:
January 38.0 °F
December 39.4 °F
February 41.7 °F
Rainiest months:
May 7 days
June 7 days
July 7 days
Windiest months:
March 5.2 mph
May 5.1 mph
April 5.1 mph

Winterthur on a weather map

Winterthur
+36°F
NE 1 mph
Feels like: +36°F
Precip.: 100%
Places in Switzerland:
Name
°F
+39°F
+36°F
+30°F
+21°F
+36°F
+32°F
+37°F
+39°F
+39°F
+43°F
+30°F
+30°F
+36°F
+16°F
+36°F
24 Hours Forecast
Winterthur
Local time: 09:26
December 05, friday
1200
37°F
NE
1 mph
1500
37°F
E
2 mph
1800
36°F
N
2 mph
2100
34°F
W
2 mph
December 06, saturday
0000
30°F
N
2 mph
0300
28°F
NW
4 mph
0600
30°F
N
3 mph
0900
36°F
N
3 mph
Units of measurement: °C / °F