Indian climate is a monsoon type of climate. Monsoon climate is characterized by weather conditions that change from season to season.
These monsoon winds are confined to tropical areas between 20 degrees N and S latitudes. Due to Himalayas entire India is brought under the sway of moist laden winds for a few months. The Himalayas block the monsoon winds and confine them to the Indian subcontinent. Without monsoons, India would have been a desert. In India monsoon usually lasts from July to September. 90% of the rainfall in India is due to monsoon.