Katano, Japan's climate is characterized by a moderate winter with temperatures often below freezing, but also experiencing warm days. Spring brings significant warming, with temperatures rising rapidly from March onwards, reaching highs of over 20°C by April and May. Summer months are hot, with July and August seeing average highs around 30°C, while autumn brings a return to milder conditions, with September being the warmest month on average. Winter returns in November, with temperatures dropping below freezing again, but still experiencing some warmer days. The temperature fluctuations throughout the year are notable, with an average annual range of about 20-25°C.