Altstätten Weather & Climate: Best Time to Visit
The climate in Altstätten, St.Gallen Canton, Switzerland, is marked by large temperature swings across the seasons, ranging from 23°C (73°F) in July to 4°C (39°F) in January.
The city has a wet climate, receiving around 1699 mm (67 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from May to August. June is the wettest month. Sunshine peaks in July, when the city sees around 7.6 hours of sunshine per day.
Monthly Temperature in Altstätten
In Altstätten, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 23°C (73°F) in July to a chilly 4°C (39°F) in January.
Nighttime temperatures range from 13°C (55°F) in July to -4°C (25°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Altstätten
Altstätten experiences significant rain/snowfall throughout the year, averaging 1699 mm (67 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 198 mm (7.8 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, January, still receives a respectable 106 mm (4.2 in) of snow/rainfall. For more details, please visit our Altstätten 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 Altstätten
In Altstätten, summer days are longer and more sunny, with daily sunshine hours peaking at 7.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.6 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Altstätten by Month
The relative humidity is high throughout the year in Altstätten.
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
Altstätten 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Altstätten
The best time to visit Altstätten is during September, when the weather provides comfortable temperatures of 19°C (65°F). With rainfall of 145 mm (5.7 in), you can expect generally favorable weather for your visit during this period.Be prepared for heavier rainfall during May, June, July and August, the wettest period of the year. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
