Ascona Temperature by Month
Ascona in Canton of Ticino, Switzerland sees significant seasonal temperature differences, with daytime highs between 4°C (39°F) in January and 24°C (75°F) in July, averaging 14°C (57°F) annually. Explore the full monthly breakdown below.
Ascona Monthly Temperatures
Depending on the time of the year, temperatures range from warm to cold in Ascona. Nighttime lows follow the same pattern, ranging from 13°C (55°F) to -4°C (25°F).
The chart below illustrates the average maximum day and minimum night temperatures in Ascona by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 267 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Ascona Temperatures: 1976-2026
Browse day-by-day temperature records for Ascona spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Ascona vs Switzerland
The map below shows the annual temperature across Switzerland. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Ascona vs World: Temperature Compared
Ascona's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Ascona?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Ascona, January is the coolest month, with average highs of 4°C (39°F) and humidity around 66% — considered high. In July, the warmest month, temperatures average 24°C (75°F) with 64% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Ascona's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ascona climate page.
