Winterthur Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Winterthur.
Climate overview of Winterthur
Temperatures in Winterthur, Canton of Zurich, Switzerland, vary greatly throughout the year. July is the hottest month at 25°C (77°F), while January is the coldest at 5°C (41°F).
The city receives considerable rain/snowfall, with around 1195 mm (47 in) annually. May is the wettest month. It has warm summers and cold winters. The most sunshine falls in July, with an average of 7.7 hours of daily sunshine.
Winterthur Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Winterthur - and find the best time to visit.
Monthly Temperature in Winterthur
The climate in Winterthur is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 25°C (77°F) in July to a chilly 5°C (41°F) in the coolest month, January.
Nights vary from 14°C (57°F) in July to around -1°C (30°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Winterthur
Winterthur has a notably wet climate with abundant precipitation, recording 1195 mm (47 in) of rain/snowfall per year. Precipitation levels in Winterthur remain relatively steady throughout the year. May has the most rain, with 125 mm (4.9 in) over 18 days. In the driest month February, this drops slightly to 81 mm (3.2 in), making the city's climate fairly predictable. For more details, please visit our Winterthur Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Winterthur
For those who appreciate different seasons, Winterthur serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 7.7 hours of sunshine daily, and embrace the darker days in December, offering only 1.6 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Winterthur by Month
The relative humidity is high throughout the year in Winterthur.
The city experiences its highest humidity in November, reaching 85%. In April, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Winterthur
The average wind speed over the year ranges from 2 m/s (4 knots) to 3 m/s (6 knots). It is lower in January, May, June, July, August, September, October and November and higher in February, March, April and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Winterthur
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Winterthur
What is the best time to visit Winterthur?
September typically offers the most optimal weather in Winterthur. In contrast, January, February, November and December tend to have less optimal conditions. Winterthur has warm summers and cold winters.
What temperatures can I expect in Winterthur?
Daytime highs range from 5°C (41°F) in January to 25°C (77°F) in July. Nighttime lows range from -1°C (30°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Winterthur get?
Annual rainfall is around 1195 mm (47 in). May is the wettest month with 125 mm (4.9 in), while February is the driest with 81 mm (3.2 in).
How sunny is Winterthur?
Winterthur receives around 1,705 hours of sunshine per year. July is the sunniest month with 230 hours, while December is the cloudiest with just 48 hours.
Winterthur 3-Day Forecast
Winterthur on the map
Winterthur is highlighted - select any city to see its climate.
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