The annual rainfall received in the coastal districts of Tamil Nadu is predominantly attributed to which of the following meteorological phenomena?

💡 Solution & Explanation

Tamil Nadu receives nearly half of its annual precipitation during the northeast monsoon season from October to December. As the southwest monsoon withdraws, high pressure builds over the Tibetan plateau, turning surface winds to northeasterly directions over the Bay of Bengal where they pick up moisture and strike the southeastern coast of India. The Western Ghats shield Tamil Nadu from the southwest monsoon, making the winter northeast monsoon vital for the region's agricultural water supply. Western disturbances bring winter rain primarily to northern and northwestern India.