Aizumi, Japan experiences a temperate climate with distinct seasonal changes. Winters are cool and relatively mild, with temperatures ranging from -3°C to 16°C in January and December, averaging around 6-9°C. As spring arrives, temperatures gradually warm up, reaching an average high of 15°C in April and May, with occasional heatwaves that bring temperatures above 27°C. Summers are hot and humid, with July and August being the hottest months, while autumn brings a welcome coolness, with temperatures dipping back down to around 10-14°C by October and November.