Kenedy returned to pre-season training with Chelsea on Monday, but will now travel to Newcastle on Monday evening ahead of the move.
Following his successful stint at St James' Park in the second half of last season, Kenedy will now rejoin the Magpies for the duration of 2018-19.
During his spell at Newcastle last season, Kenedy scored two goals in 13 games from his left wing-back position.
The uncertainty around Chelsea's managerial situation has meant it has been unclear who would be loaned out by the Blues this summer.
He is also thought to be open to a permanent move to Newcastle United, but his preference is to stay put at Chelsea and play regular football for the Premier League giants in the coming seasons. Others including Bayern Munich, PSG and even Liverpool have shown interest.
Emerson Palmieri's arrival from Roma for around £20m at the end of the winter window then pushed Kenedy further down the pecking order, and it was decided that a loan to Newcastle for the remainder of the campaign was the best option to rebuild his value.
Antonio Conte's future will have a telling effect on Kenedy's next move.
Gab Marcotti discusses the latest developments in the Conte-Sarri saga and what's keeping the former Napoli manager from moving to Stamford Bridge.