The timing for when it starts getting cold depends on the location, but as a general reference for temperate climates like Amsterdam in the Netherlands, cold weather typically begins in late autumn, around November. Winter, the coldest season, usually starts in December and lasts through February, with average temperatures around or below freezing at night. Early autumn and late spring can still have some cold days, especially at night or during cold waves. Heating often gets turned on when temperatures drop below around 15 to 20°C indoors, commonly starting in September or October as it starts feeling cool inside.
If you can let me know your specific location or region, I can provide a more precise answer about when the cold typically starts there.
