Give Reasons as to Why: The Tamil Nadu Coast Receives Winter Rainfall

By BYJU'S Exam Prep

Updated on: November 14th, 2023

Tamil Nadu coast receives winter rainfall because of the intense southwest trade winds flowing to the northern hemisphere during the monsoons. According to the Koppen climate classification, a significant part of Tamil Nadu has a tropical savanna climate. In contrast, a small part of the state has a humid subtropical climate. The climatic conditions of the state range from arid and sub-humid to semi-arid.

Winter Rainfall at Tamil Nadu Coast

The northeast monsoon, which moves from land to sea, brings rain to the Tamil Nadu coast during winter. In the north of the country, they do not affect rainfall. However, as they cross the Bay of Bengal, they carry moisture and bring rain to parts of southeast India, especially the Tamil Nadu coast.

The reasons for receiving winter rains over the Tamil Nadu coast are as follows:

  • The monsoon season lasts between 100 and 120 days, from early June to mid-September. While most of the country receives rainfall from June to September, other regions, such as Tamil Nadu, receive the highest rainfall in October and November.
  • The northeast trade winds dominate the country’s weather during winter.
  • As the winds move from land to sea, most parts of the country have a dry season.
  • Rain occurs when winds blow from the sea to the land and collect moisture from the ocean.
  • The east coast experiences rainfall due to its physical location, where the northeast trade winds blow from the sea to the land. As a result, the Tamil Nadu coast receives winter rains.

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