Spring in Shiyan brings mild temperatures, with March averaging 24°C. As the season progresses, temperatures gradually warm up, reaching highs around 28-30°C by May. Summer heat is intense, with June and July often seeing mercury rise above 34°C, making it a sweltering time to be outdoors. Autumn is characterized by gentle warmth, with September and October averaging highs in the mid-to-upper 20s. Winter is relatively mild, with temperatures rarely dropping below 2-3°C, even in January, the coldest month.