The category 2 storm is slowly churning northeast with winds already starting to hit the Ryukuku islands.
Trami’s strong winds knocked over trees, damaged buildings and caused flooding as a result of heavy rain.
Several vehicles were pictured lying upside down or on their sides after being tossed into the air by the strong winds.
There are no reports of anyone being killed, but officials are warning people to stay safe.
Sakiko Nishioka of Japan Meteorological Agency said on Friday: “Please be on high alert against violent winds, high waves and heavy rainfall.”
“Please be on high alert against violent winds, high waves and heavy rainfall.”
Trami is predicted to move directly across Kyushu and Honshu islands on Sunday.
Tokyo, based on the southeastern end of Honshu, will not be directly impacted but weather forecasters estimate 90pmh winds could hit the capital.
Accuweather is predicting 400mm of rainfall across western Japan.
Jason Nicholls, senior meteorologist for accuweather, said: “Storm surge flooding along the entire southern coast of Japan will further threaten lives and property Sunday into Sunday night.”
So far, Trami has forced 380 flights to be cancelled.
Power outages across the Okinawa Prefecture affected more than 121,000 homes.
Where is Trami now?
Trami was located about 37 miles west of Okinoerabu Island in Kagoshima Prefecture at 2pm BST (10pm local time) on Saturday.
The storm was moving north-northeast at a speed of 15 miles per hour.