Shangqiu has a monsoon-influenced humid subtropical climate (Köppen "Cwa"), with four distinct seasons. Winters are cool and mostly dry while summers are hot and humid; spring is warm and sees some, but not much rainfall, while autumn weather is crisp and drier. The monthly 24-hour average temperature ranges from around the freezing mark in January to in July, while the annual mean is . Close to two-thirds of the annual precipitation occurs from June to September. The average temperature is below 10 °C for winter, 22 °C for summer, and between 10-22 °C for spring and autumn. Shangqiu City has a long winter, followed by summer, and a significantly shorter spring and autumn.