<human>:  What is a monsoon?
<bot>: A monsoon is a season of heavy rainfall and strong winds, most commonly associated with the Indian subcontinent. It is typically associated with warmer temperatures and is defined as a period of sustained and heavy rainfall over an extended period of time. Monsoons are caused by the differential heating of waters in the ocean and land, which results in an area of low pressure and winds that blow in an easterly direction.