In the spring season, Chaigoubu experiences mild temperatures with a gradual warming trend. March brings average highs around 10°C and lows of around -2°C, while April sees a rise to average highs of 16°C and lows of 6°C. May is warm but not hot, with average highs reaching 22°C and lows staying relatively cool at 13°C. Summer months are pleasant, with July highs averaging 25°C and lows of 19°C. Autumn brings a cooling trend, with September highs averaging 18°C and lows of 10°C, setting the stage for a chilly winter.