Climate

Tropical; mild winter (October to March); hot, humid summer (March to June); humid, warm rainy monsoon (June to October).

Terrain: mostly flat alluvial plain; hilly in southeast.

note: most of the country is situated on deltas of large rivers flowing from the Himalayas: the Ganges unites with the Jamuna (main channel of the Brahmaputra) and later joins the Meghna to eventually empty into the Bay of Bengal.