Wakayama's winters are mild, with temperatures fluctuating between freezing and moderate, averaging around 6-10°C. Spring brings a gradual warming trend, with temperatures rising steadily from March to May, peaking at an average of 20°C in May. Summer is hot and humid, with sweltering highs often reaching above 35°C, while autumn sees a gentle cooling, with temperatures dropping back down into the mid-teens by November.