Huai'an experiences mild springs with temperatures gradually warming up. By April, the mercury rises, reaching highs of around 24°C and lows of 14°C, marking a significant increase from the previous month's averages. Summer months are hot and humid, with July being the warmest, averaging highs of 32°C and lows of 23°C. Autumn brings relief from the sweltering heat, with September temperatures ranging from 17°C to 28°C, creating a comfortable climate. Winters are relatively cool, with January temperatures averaging around 2°C to 7°C.