The 27-year-old Portuguese international has played more than 100
games and scored twice since joining the Premier League side in 2015.
"Cedric Soares is a new Inter player. The 27-year-old defender joins
the Nerazzurri on loan from Southampton FC with the option to make the
deal permanent," Inter said in a statement.
Southampton said the "move further helps to achieve Ralph
Hasenhuttl's desire for a leaner squad, with the manager having also
overseen the emergence of young right-back Yan Valery, as well as Kayne
Ramsay, since his arrival at the club."
Inter Milan are third in Serie A - 16 points behind leaders Juventus.