Hong'an's weather is characterized by mild temperatures in spring, with March marking the beginning of a gradual warming trend. Temperatures range from 7°C to 10°C on average, with an overall average of 9°C. Summer months bring hot and humid conditions, with July being the warmest month. Autumn is relatively cool and dry, with temperatures dropping significantly by October. Winters are cold and dry, with January being the coldest month, but still relatively mild compared to other parts of China.