The 5 most scenic train journeys in Switzerland
Explore Switzerland's top 5 train journeys, featuring breathtaking Alpine views and engineering marvels like the Glacier Express and Bernina Express.
Rapperswil-Jona Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rapperswil-Jona.
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Climate overview of Rapperswil-Jona
The climate in Rapperswil-Jona, 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 receives considerable rain/snowfall, with around 1742 mm (69 in) annually. June is the wettest month. It has a distinct rainy season from May to August, with warm summers and cold winters. July is the sunniest month, averaging 7.7 hours of sunshine per day.
Rapperswil-Jona Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rapperswil-Jona - and find the best time to visit.
Monthly Temperature in Rapperswil-Jona
In Rapperswil-Jona, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 23°C (73°F) in July to a chilly 4°C (39°F) in the coolest month, January.
Nights vary from 13°C (55°F) in July to around -3°C (27°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Rapperswil-Jona
Rapperswil-Jona experiences significant rain/snowfall throughout the year, averaging 1742 mm (69 in) of precipitation annually. Rapperswil-Jona offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (196 mm (7.7 in)) and the driest month January (113 mm (4.4 in)) is not too significant. For more details, please visit our Rapperswil-Jona 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 Rapperswil-Jona
For those who appreciate different seasons, Rapperswil-Jona 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
Data from: Zürich, Switzerland (25 KM, 15 Miles).
Daily hours of sunshine
Data from: Zürich, Switzerland (25 KM, 15 Miles).
Daily percentage of sunshine
Data from: Zürich, Switzerland (25 KM, 15 Miles).
Humidity in Rapperswil-Jona by Month
The relative humidity is high throughout the year in Rapperswil-Jona.
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
Data from: Zürich, Switzerland (25 KM, 15 Miles).
Best Time to Visit Rapperswil-Jona
For the most comfortable conditions available during the year, consider visiting Rapperswil-Jona in May, June, July, August and September. Conditions are usually least comfortable in January, February, March, April, 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
wet
May
good
Jun
good
Jul
good
Aug
good
Sep
good
Oct
mixed
Nov
wet
Dec
cold
- Best overall: May, June, July, August 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 Rapperswil-Jona
What is the best time to visit Rapperswil-Jona?
May, June, July, August and September typically offer the most optimal weather in Rapperswil-Jona. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Rapperswil-Jona has a distinct rainy season from May to August, with warm summers and cold winters.
What temperatures can I expect in Rapperswil-Jona?
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 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Rapperswil-Jona get?
Annual rainfall is around 1742 mm (69 in). June is the wettest month with 196 mm (7.7 in), while January is the driest with 113 mm (4.4 in).
How sunny is Rapperswil-Jona?
Rapperswil-Jona 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.
Rapperswil-Jona 3-Day Forecast
Rapperswil-Jona on the map
Rapperswil-Jona is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
Zürich
20°C (68°F) Crans-Montana15°C (59°F) Engelberg
15°C (59°F) Nendaz15°C (59°F) Saas-Fee12°C (54°F) Davos13°C (55°F) Grindelwald13°C (55°F) Zermatt11°C (52°F) Bucket list
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