<P> While travelling towards the Indian Ocean , the dry cold wind picks up some moisture from the Bay of Bengal and pours it over peninsular Indi ) and parts of Sri Lanka . Cities like Chennai , which get less rain from the Southwest Monsoon , receive rain from this Monsoon . About 50 % to 60 % of the rain received by the state of Tamil Nadu is from the Northeast Monsoon . In Southern Asia , the northeastern monsoons take place from December to early March when the surface high - pressure system is strongest . The jet stream in this region splits into the southern subtropical jet and the polar jet . The subtropical flow directs northeasterly winds to blow across southern Asia , creating dry air streams which produce clear skies over India . Meanwhile , a low pressure system develops over South - East Asia and Australasia and winds are directed toward Australia known as a monsoon trough . </P>
<P> While travelling towards the Indian Ocean , the dry cold wind picks up some moisture from the Bay of Bengal and pours it over peninsular Indi ) and parts of Sri Lanka . Cities like Chennai , which get less rain from the Southwest Monsoon , receive rain from this Monsoon . About 50 % to 60 % of the rain received by the state of Tamil Nadu is from the Northeast Monsoon . In Southern Asia , the northeastern monsoons take place from December to early March when the surface high - pressure system is strongest . The jet stream in this region splits into the southern subtropical jet and the polar jet . The subtropical flow directs northeasterly winds to blow across southern Asia , creating dry air streams which produce clear skies over India . Meanwhile , a low pressure system develops over South - East Asia and Australasia and winds are directed toward Australia known as a monsoon trough . </P>
the north eastern winter monsoon winds cause rainfall along
the north eastern winter monsoon winds cause rainfall along
peninsular Indi ) parts of Sri Lanka
peninsular Indi ) parts of Sri Lanka