Question
Explain the factors that influence the climate of India.

Answer

The following factors influence the climate of India:
  1. Tropic of Cancer. Tropic of Cancer (23°30′ N) passes through the middle of the country dividing it almost into two halves. Southern portion of India falls in the tropical zone while northern portion in the sub-tropical or temperature zone. During summer the entire country experiences high temperature. During winter southern portion remains warm, moderate while some parts of Himalayan region experiences temperature below freezing point. Hence our country lies in tropical zone and its climate is tropical.
  2. The Himalayas. The Himalayas protect India from cold and chilly winds of the central India in winter. They cause the SW monsoon winds to shed their moisture all over India and thus provide rains to us. Had there been no Himalayas, India would have been a very hot and dry desert.
  3. Peninsular Shape of South India. Due to peninsular shape of south India, Bay of Bengal and Arabian sea exert their moderating effect on the entire peninsula. Thus its climate is equable.
  4. Relief. Relief also plays an important role in the climate of India. High mountains are cooler than plains. Due to cool climate of hilly regions in India several hill resorts have come into being such as Dharmshala, Shimla, Kullu, Manali, Mussoorie, Darjeeling in the Himalayas and Kodai Kanal and Udagamadalam (Ooty) on the Peninsular plateau.
Rainfall distribution is also attributed to relief. Windward sides of the mountains receive heavy rainfall while leeward side remains dry or receives very scanty rainfall. It is because of this reason that Mahabaleshwar receives 625 cm of rainfall while Pune only 63 cm of rainfall.

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