Chiryu's winters are mild, with temperatures rarely dipping below freezing and averaging around 5°C in January. Spring brings a gradual warming trend, with April marking the beginning of warmer days as temperatures rise to an average of 15°C. Summers are hot and humid, with July and August often seeing highs above 35°C. Autumn is characterized by a cooling trend, with temperatures dropping back into single digits in November. Winters return, albeit briefly, before spring's warmth takes hold once more.