Iksan, South Korea experiences a temperate climate with distinct seasonal variations. Winters are cold and snowy, with temperatures often below freezing in January and December, averaging around 0°C and 3°C respectively. As spring approaches, temperatures rise steadily from March to May, reaching an average high of 17°C by May. Summers are warm and humid, with July being the hottest month, averaging a temperature of 27°C. Autumn brings milder temperatures, but can be quite chilly in November, returning to winter-like conditions by December.