Kasukabe's weather is characterized by distinct seasonal changes. Winters are cold, with temperatures fluctuating between -7°C and 18°C in January and December, averaging around 4-6°C. As spring arrives, temperatures rise gradually, reaching an average of 11°C in March and 14°C in April, with occasional warm days up to 24°C and 26°C respectively. Summer is hot and humid, with July and August temperatures often soaring above 30°C, averaging around 25-27°C. Autumn brings a return to milder temperatures, with September and October averages ranging from 15-17°C, before cooling down again in November and December.