Hilsa's climate is characterized by a warm and humid summer, with temperatures steadily increasing from March to May, reaching highs of up to 42°C. The monsoon months of June and July bring slightly cooler temperatures, but the heat remains oppressive. Autumn brings a slight respite, with mild temperatures in October and November, before winter sets in, bringing chilly mornings and cool days. Winter months of January and December are marked by cold nights and moderate daytime temperatures. Overall, Hilsa's climate is hot for most part of the year, with temperature fluctuations occurring mainly during the transition periods between seasons.