Yiyang's climate is characterized by mild winters, with temperatures rarely dropping below 4°C in December and January. Spring arrives in March, bringing average highs of around 17°C and lows of 14°C, setting the stage for a warm summer. Summer months from June to August are hot and humid, with temperatures often reaching above 30°C, while autumn brings a slight cooling, with September averaging highs of 26°C. Winters are relatively mild, but still cool enough to require light clothing, with January's average temperature around 4°C. The region experiences distinct seasonal changes, with spring and autumn being the most pleasant times of the year.