Winters in Yeosu are cold and unpredictable, with temperatures fluctuating wildly between -15°C and 15°C, averaging around 1°C. Spring arrives in March, bringing mild temperatures ranging from -3°C to 23°C, gradually warming up to a pleasant average of 10°C. Summer months of June to August are hot and humid, with temperatures soaring up to 37°C, while autumn is characterized by a gentle decline, with September being the warmest month at an average temperature of 22°C. In contrast, winters and early springs are marked by chilly days, with December and February averaging around 3°C.