Why Tamil Nadu receives rainfall During winter season?

(i)Tamil Nadu lies on the eastern coast of the Peninsula. During summer, Arabian Sea branch of South-west Monsoon ascends the Western Ghats and causes maximum rainfall on its western side. On the other hand, the Tamil Nadu coast remains dry due to its location off the way of South-west Monsoon as moving towards east they go on shedding their moisture.

(ii) During winter, the North-east dry Monsoon winds blow over the Bay of Bengal. As they pass over the Bay of Bengal they pick up moisture and bring rain to the Tamil Nadu coast as now they are under the effect of on-shore winds, full of moisture. Tamil Nadu is situated on the east coast. That is why; it receives rainfall more in winter than in summer.