Jiangshan experiences mild spring weather with temperatures gradually warming up. In March, the average temperature is around 19°C, marking a significant increase from the cooler winter months. Summer brings hot and humid conditions, with July being the warmest month, although exact temperature ranges are not specified in the data table. Autumn is generally pleasant, with comfortable temperatures in September and October. Winter can be cool to mild, with January averaging around 8°C, but temperatures fluctuate throughout the season.