See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:23
Sunrise
19:08
Sunset
Moon
Waxing Gibbous
18:37
Moonrise
05:40
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Ascona.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Ascona.
View stargazing scoreWeather in Ascona today, September 25, 2026
Expect a muted, overcast feel in Ascona on September 25, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Cloud leads the morning, peaking close to 100% near 07:00. Sunshine has little room until later in the day.
The temperature range runs from about 17°C up to 21°C. Expect humidity between 51% and 83%, most humid near 08:00. Expect gentle winds, highest near 13:00 at 2.3 km/h.
Expect persistent cloud later on, with amounts around 90% by 14:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 37.3 km on average, though it can drop toward 31.4 km in thicker cloud or showers. Expect sunrise at 07:23, sunset at 19:08, and 11 hours 44 minutes of sunlight today overall.
The practical takeaway for Ascona on September 25, 2026 is a cloudy day that stays usable, just not particularly bright, around 21°C.
Frequently asked questions about weather in Ascona
How warm does it get in Ascona?
The warmest month in Ascona is July, with average high temperatures of 22°C. The average temperature during this period is around 17°C.
How cold does it get in Ascona?
The coldest month in Ascona is January, with average low temperatures of -5°C. The average temperature during this period is around -1°C.
What is the wettest time of year in Ascona?
The wettest month in Ascona is October, with an average of 224mm of precipitation.
What is the driest time of year in Ascona?
The driest month in Ascona is February, with an average of 69mm of precipitation.
