Ascona Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Ascona.
Climate overview of Ascona
Ascona, Canton of Ticino, Switzerland, sees big temperature differences between seasons, with July peaking at 24°C (75°F) and January dropping to 4°C (39°F).
Rain/snowfall is high, totalling around 1736 mm (68 in) per year. October is the wettest month and February the driest. The city also experiences a distinct rainy season from August to November, with warm summers and cold winters. The most sunshine falls in July, with an average of 8.9 hours of daily sunshine.
Ascona Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ascona - and find the best time to visit.
Monthly Temperature in Ascona
Visitors to Ascona can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in July, the warmest time of the year, to a chilly 4°C (39°F) during cooler months like January.
At night, you can expect temperatures ranging from 13°C (55°F) in July to around -4°C (25°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ascona
Ascona is known for its substantial rain/snowfall, with annual precipitation reaching 1736 mm (68 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives heavy rainfall, averaging 200 mm (7.9 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month February brings less snow/rainfall, with 77 mm (3 in) over 12 snowy/rainy days. For more details, please visit our Ascona 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 Ascona
Seasonal changes in sunshine hours are quite dramatic in Ascona. While July receives considerable daily sunshine with up to 8.9 hours, November marks the darkest time of the year, where sunshine is scarce with only 3.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Ascona by Month
The relative humidity is high throughout the year in Ascona.
The city experiences its highest humidity in December, reaching 75%. In March, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Ascona
The mean wind speed over the year ranges from 1 m/s (2 knots) in January, February, March, April, May, June, July, August, September, October, November and December to 1 m/s (2 knots) in January, February, March, April, May, June, July, August, September, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Ascona
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July and August
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: A distinct rainy season from August to November, with warm summers and cold winters
- Coldest conditions: January, with freezing nights around -4°C (25°F).
Frequently asked questions about the climate in Ascona
What is the best time to visit Ascona?
June, July and August typically offer the most optimal weather in Ascona. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Ascona has a distinct rainy season from August to November, with warm summers and cold winters.
What temperatures can I expect in Ascona?
Daytime highs range from 4°C (39°F) in January to 24°C (75°F) in July. Nighttime lows range from -4°C (25°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Ascona get?
Annual rainfall is around 1736 mm (68 in). October is the wettest month with 200 mm (7.9 in), while February is the driest with 77 mm (3 in).
How sunny is Ascona?
Ascona receives around 2,234 hours of sunshine per year. July is the sunniest month with 267 hours, while November is the cloudiest with just 113 hours. Overall, Ascona enjoys abundant sunshine.
Ascona 3-Day Forecast
Ascona 3-Day Forecast
Ascona on the map
Ascona is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Zürich
25°C (77°F) Crans-Montana
19°C (66°F) Engelberg19°C (66°F) Nendaz19°C (66°F) Saas-Fee17°C (63°F) Davos17°C (63°F) Grindelwald17°C (63°F) Zermatt15°C (59°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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.
You'll love this Mountain roller coaster
Hotel Oeschinensee’s mountain coaster is a summer toboggan that you want to add to your bucket list. You'll get in your cart, sit down and fly across the track while enjoying the beautiful mountain scenery around you.
The Verzasca Valley
You can visit the Verzasca Valley in any season. It's an amazing place for swimming and it is a paradise for hikers. A must see for the bucket list.
Balloon at Chateau D'oex
If you are looking for a special place to visit in Europe in January we recommend visiting the annual balloon festival in Château-d'Oex, Switzerland.