Chittaranjan experiences a warm and humid climate year-round. In spring, temperatures gradually rise from the mid-20s in March to the late 30s by May, with average highs often reaching around 35°C. Summer brings scorching heat, with temperatures frequently soaring above 40°C from June to September. Autumn months of October and November see a slight drop in temperature, ranging from 25-30°C, while winters are mild, with temperatures hovering around 15-20°C from December to February.