Kaizuka, Japan experiences a temperate climate with distinct seasonal variations. Winters are cool and somewhat variable, with temperatures rarely dropping below freezing and occasionally rising into the mid-teens. As spring approaches, temperatures gradually warm up, with April marking a significant increase in average highs. Summers are hot and humid, with July and August often seeing sweltering heatwaves. Autumn brings a welcome respite from the summer heat, with mild temperatures returning by October, only to cool down again in November.