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15-day forecast for Chiasso

Right now

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From 27 Sep to 12 Oct in Chiasso: 3 day(s) of clear skies expected, highs from 16 to 25 °C and 41.4 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.Wind
Todaymostly sunny12 °C24 °C0.0 mm3 km/h
Tomorrowmostly sunny13 °C25 °C0.0 mm5 km/h
Tue 29 Sepovercast15 °C23 °C0.1 mm6 km/h
Wed 30 Sepovercast16 °C22 °C0.3 mm6 km/h
Thu 1 Octlight rain14 °C17 °C3.8 mm4 km/h
Fri 2 Octovercast14 °C21 °C0.0 mm5 km/h
Sat 3 Octfog13 °C22 °C0.0 mm7 km/h
DayWeatherMinMaxPrecip.Wind
Sun 4 Octlight drizzle15 °C23 °C0.3 mm8 km/h
Mon 5 Octlight drizzle16 °C18 °C3.9 mm6 km/h
Tue 6 Octdrizzle13 °C16 °C9.0 mm11 km/h
Wed 7 Octdrizzle12 °C18 °C3.0 mm6 km/h
Thu 8 Octovercast11 °C21 °C0.0 mm5 km/h
Fri 9 Octovercast12 °C20 °C0.0 mm8 km/h
Sat 10 Octshowers13 °C16 °C6.0 mm8 km/h
Sun 11 Octshowers11 °C18 °C15.0 mm8 km/h
Mon 12 Octovercast– °C– °C– mm– km/h

And at 20, 25 or 30 days? No model seriously forecasts that far. Climatology takes over: the October norm is 13.1 °C in Chiasso, the November norm 8.2 °C (MeteoSwiss 1991–2020, monthly means measured nearby).

Frequently asked questions

Are these 15-day forecasts reliable?

Reliability decreases with the horizon: excellent at 3 days, good up to 7, indicative beyond 10. Each passing day sharpens the rest.

Can the weather be forecast a month ahead?

No, not day by day. That is why this page completes the 16 forecast days with the MeteoSwiss monthly norms for Chiasso: the most honest estimate beyond two weeks.

meteo-ch.ch · Open-Meteo data, MeteoSwiss norms 1991–2020