Turin is wonderful all year long, however, most of the rain is falling between October and April. If you look at the climate, the best time to go would be between May and October when the temperatures are around 22°C.
Piedmont is mainly characterised by a continental kind of climate with a considerable range
of temperature both daily and annually, since the region is protected from marine influence.
The winters are cold and dry, the summers are cool in the hills and quite hot in the plains. During the winter and autumn months banks of fog, which are sometimes very thick, form in the plains.
Within these limits the climate can be divided into three types: the alpine climate, the Padano climate and the peripheral Piedmontese climate.
As regards the average temperatures recorded in the area, the climate is not directly related to the altitude, given that the wider alpine basins often have average winter temperatures more or less the same as those of the plains and summer averages that are not very different . It is increasingly common for absolute minimum temperatures to be recorded in the plains, in residential areas.