Benin's climate is hot and humid. Yearly rainfall in the coastal area averages 1300 mm or about 51 inches. Benin has two rainy and two dry seasons per year. The main rainy season is from April to late July, with a shorter less strong rainy period from late September to November. The main dry season is from December to April, with a short cooler dry season from late July to early September. In Cotonou, the average maximum temperature is ; the minimum is .