Lechang's climate is characterized by mild springs with temperatures gradually warming up from around 9°C in early March to a high of 20°C towards the end of the month, averaging at 15°C. Summer months bring hot and humid conditions, with July being the warmest period, though exact temperature ranges are not specified. Autumn sees a significant drop in temperatures, with September experiencing cooler days than previous months. Winters are relatively mild, with January temperatures ranging from 4°C to 12°C, averaging around 8°C.