Heshan experiences mild springs with temperatures gradually warming up from the end of winter. By April, the mercury rises to around 26-30°C, marking a significant increase in warmth. Summer months bring high humidity and temperatures often soar above 35°C, making it a hot and muggy season. Autumn is characterized by a decrease in temperature, with average highs ranging from 25-28°C, creating a comfortable climate for outdoor activities. Winter, though chilly, remains relatively mild, with temperatures averaging around 10-15°C, allowing for some frost but no extreme cold snaps.