Biswanath Chariali District falls in the Sub-Tropical climatic region, and enjoys Monsoon type of climate. Summers are hot and humid; with an average temperature of 29 °C. Summer rain is heavy which is both a boon and a bane for the people. A boon, for it provides natural irrigation to the fields; and a bane, as it causes the rivers to overflow their banks and cause floods. Winters extend from the month of October to February, and are cold and generally dry, with an average temperature of 16 °C. It gets quite chilly during late December and early January, on account of snowfall in the upper reaches of Arunachal Pradesh.