Kalyani experiences a hot and humid climate with distinct seasonal variations. Winter, from October to February, is mild with temperatures ranging from 11-36°C, making it the most pleasant time of the year. Spring, from March to May, brings rising temperatures up to 40°C, marking the beginning of summer. Summer itself, from June to September, remains hot and humid, with temperatures hovering around 30-35°C. Autumn, from October to November, sees a slight dip in temperature before the onset of winter again.