The full-back became Alan Pardew's first January capture, paving the way for an influx of talent from across the channel.
And Debuchy insists it is the presence of several fellow countrymen that means the transition to life in the Premier League has been smoother than it is for most.
"With all the French players arriving, settling in became much more of a simple task," he told The Independent.
"I've been given a warm welcome here. Yohan (Cabaye) and I have known each other for a long time, so it was a great help having him."
"I was very, very happy Newcastle came back in for me. This is a big club."
The France international was the first of five transfer window arrivals from his homeland, but insists the French contingent have no problem getting along with the local lads at the club.
"There is absolutely no problem between the French players and the English players," he added.
"We all get on really well. That is important the spirit is strong."
"We can talk French where we want, but it is better for us to make an effort in English. I am getting lessons three times a week, and I can already understand Steven Taylor!"