Obu, Japan experiences a temperate climate with distinct seasonal changes. Winters are cold and snowy, with temperatures ranging from near-freezing to mild, averaging around 5-7°C in January and December. As spring arrives, temperatures gradually warm up, reaching averages of 12-15°C in March and April, with occasional highs above 20°C. Summers are hot and humid, with July and August being the hottest months, often seeing temperatures soar above 30°C. In autumn, temperatures cool down again, returning to a more temperate range, while winters bring a return to cold weather.