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15-day forecast for Chardonne

Right now

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From 27 Sep to 12 Oct in Chardonne: 1 day(s) of clear skies expected, highs from 12 to 26 °C and 80.7 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.WindConfidence
Todaypartly cloudy12 °C25 °C0.0 mm8 km/hmedium
Tomorrowovercast14 °C26 °C0.0 mm7 km/hmedium
Tue 29 Sepovercast16 °C23 °C0.0 mm7 km/hhigh
Wed 30 Seplight rain17 °C20 °C0.9 mm6 km/hmedium
Thu 1 Octshowers16 °C18 °C12.8 mm6 km/hmedium
Fri 2 Octovercast15 °C20 °C0.0 mm9 km/hmedium
Sat 3 Octovercast14 °C21 °C0.0 mm5 km/hhigh
DayWeatherMinMaxPrecip.WindConfidence
Sun 4 Octshowers15 °C16 °C15.0 mm4 km/h
Mon 5 Octshowers12 °C15 °C27.9 mm8 km/h
Tue 6 Octshowers12 °C13 °C11.4 mm5 km/h
Wed 7 Octlight drizzle11 °C14 °C0.9 mm5 km/h
Thu 8 Octlight drizzle11 °C14 °C1.8 mm4 km/h
Fri 9 Octlight drizzle11 °C14 °C3.0 mm7 km/h
Sat 10 Octlight drizzle11 °C12 °C3.0 mm16 km/h
Sun 11 Octdrizzle10 °C15 °C4.0 mm14 km/h
Mon 12 Octovercast– °C– °C– mm– km/h

Confidence index: agreement of 4 independent models (ICON, GFS, IFS, ARPEGE) on the daily high and on rain. High = highs within 2 °C and the same rain verdict; low = more than 4 °C apart or models split on rain.

And at 20, 25 or 30 days? No model seriously forecasts that far. Climatology takes over: the October norm is 10.6 °C in Chardonne, the November norm 5.7 °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 Chardonne: the most honest estimate beyond two weeks.

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