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18°
Mostly Cloudy
Feels Like: 17°
Min: 14°
Max: 21°
The next few hours will be overcast, with today reaching 21°C and dropping to 15°C. The coming days will be clear until night.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:22
Sunrise
19:07
Sunset
Moon
Waxing Gibbous
18:36
Moonrise
05:39
Moonset
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View stargazing scoreWeather in Chiasso today, September 25, 2026
Expect a muted, overcast feel in Chiasso on September 25, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. The first half of the day looks overcast, as cloud amounts reach about 85% around 10:00. Brighter weather, if it comes, waits until later.
The day peaks near 21°C and cools toward 14°C. The air stays humid, with relative humidity between 60% and 80% and the peak around 23:00. Expect gentle winds, highest near 12:00 at 2.9 km/h.
Afternoon skies stay clogged, peaking close to 95% near 14:00. The grey theme continues rather than clearing out. Visibility holds near 38.4 km, though it can fall to 34.3 km. Sunrise is at 07:22 and sunset at 19:07, giving 11 hours 45 minutes of sunlight today.
Overall, Chiasso on September 25, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 21°C.
Frequently asked questions about weather in Chiasso
How warm does it get in Chiasso?
The warmest month in Chiasso is July, with average high temperatures of 28°C. The average temperature during this period is around 24°C.
How cold does it get in Chiasso?
The coldest month in Chiasso is January, with average low temperatures of 1°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Chiasso?
The wettest month in Chiasso is October, with an average of 178mm of precipitation.
What is the driest time of year in Chiasso?
The driest month in Chiasso is January, with an average of 51mm of precipitation.
