IPA: /ˈsaʊθwədz/
KK: /ˈsaʊθwərdz/
In a direction toward the south.
The birds flew southwards for the winter.
Southwards → It is formed from "south" (from Old English *sūþ*, meaning the direction toward the south) and "-wards" (meaning in the direction of). The word "southwards" means in the direction of the south.
Think of the direction 'south' and remember that 'southwards' means moving in that direction.