Is Saint-Étienne hot in September?
Days are typically mild at 22.6°C, while nights average 12.7°C.
France · 1991–2020 normal
Typical September weather in Saint-Étienne: 22.6°C by day, 12.7°C at night, 87 mm of rain over 7.1 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, September scores 80 out of 100 (June leads the year at 86). Daylight is calculated as 12 h 28 from latitude 45.43°.
September at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically mild at 22.6°C, while nights average 12.7°C.
The measured monthly average is 87 mm across about 7 wet days.
There are about 12 h 28 between sunrise and sunset at mid-month, calculated from the place latitude.
September ranks 2 of 12 in our weather comparison; June ranks first.
The evidence behind this page
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The weather comparison for Saint-Étienne is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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