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Gossau Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gossau.
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Climate overview of Gossau
Gossau, St.Gallen Canton, Switzerland, sees big temperature differences between seasons, with July peaking at 23°C (73°F) and January dropping to 4°C (39°F).
With around 1754 mm (69 in) of annual rain/snowfall, Gossau has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct rainy season from May to August, with warm summers and cold winters. The wettest month is June. The most sunshine falls in July, with an average of 7.6 hours of daily sunshine.
Gossau Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gossau - and find the best time to visit.
Monthly Temperature in Gossau
Visitors to Gossau can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 23°C (73°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 4°C (39°F).
At night, temperatures range from around 14°C (57°F) in July to -3°C (27°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gossau
Gossau is known for its substantial rain/snowfall, with annual precipitation reaching 1754 mm (69 in). Gossau experiences moderate seasonal variation in rainfall, with monthly averages ranging from 211 mm (8.3 in) in June, the wettest month, and 103 mm (4.1 in) in January, the driest month. For more details, please visit our Gossau 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 Gossau
Gossau can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: St. Gallen, Switzerland (9 KM, 5 Miles).
Daily hours of sunshine
Data from: St. Gallen, Switzerland (9 KM, 5 Miles).
Daily percentage of sunshine
Data from: St. Gallen, Switzerland (9 KM, 5 Miles).
Humidity in Gossau by Month
The relative humidity is high throughout the year in Gossau.
The city experiences its highest humidity in November, reaching 82%. In April, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: St. Gallen, Switzerland (9 KM, 5 Miles).
Best Time to Visit Gossau
For the most comfortable conditions available during the year, consider visiting Gossau in May and September. Conditions are usually least comfortable in January, February, March, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
wet
Mar
wet
Apr
mixed
May
good
Jun
mixed
Jul
mixed
Aug
mixed
Sep
good
Oct
mixed
Nov
wet
Dec
cold
- Best overall: May and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: A distinct rainy season from May to August, with warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Gossau
What is the best time to visit Gossau?
May and September typically offer the most optimal weather in Gossau. In contrast, January, February, March, November and December tend to have less optimal conditions. Gossau has a distinct rainy season from May to August, with warm summers and cold winters.
What temperatures can I expect in Gossau?
Daytime highs range from 4°C (39°F) in January to 23°C (73°F) in July. Nighttime lows range from -3°C (27°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Gossau get?
Annual rainfall is around 1754 mm (69 in). June is the wettest month with 211 mm (8.3 in), while January is the driest with 103 mm (4.1 in).
How sunny is Gossau?
Gossau receives around 1,632 hours of sunshine per year. July is the sunniest month with 229 hours, while December is the cloudiest with just 48 hours.
Gossau 3-Day Forecast
Gossau on the map
Gossau is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Zürich
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