Ota-ku, Japan experiences a temperate climate with distinct seasonal variations. Winters are cold and unpredictable, with temperatures fluctuating between freezing and mild days, averaging around 4-7°C. Spring arrives in March, bringing moderate temperatures that gradually warm up to an average of 12-14°C by April, with occasional hot days. Summer is hot and humid, with temperatures often reaching above 30°C from June to August, peaking at an average high of 27-39°C. Autumn returns a more temperate climate in September and October, with temperatures ranging from 15-22°C, before cooling down again in November and December.