Kuopio's winters are harsh and snowy, with temperatures often dropping below -30°C in January and February. Spring arrives slowly, with temperatures fluctuating wildly between cold snaps and mild days, but gradually warming up towards May. Summer brings warm and sunny weather, with July being the warmest month, but temperatures can still drop to around 0°C at night. Autumn is cool and wet, with temperatures decreasing steadily from September to November. December's winter chill returns, with temperatures often below -20°C.