Rashford, 27, completed his loan to Barcelona earlier in the season with the La Liga champions having a £30 million option to buy in the loan deal.
Speaking to Sport, Kounde opened up about how the England international is fitting in at the club, stating that he is happy but “introverted.”
Kounde said: "He's (Rashford) a bit introverted, but he's really enjoying himself, and feeling more and more comfortable. I think he is happy.
“He is smiling a lot. He is happy in the field. He reminds me a little of myself. He's a bit introverted, but he's enjoying himself a lot, and I think he's feeling more and more comfortable.
“Everyone has welcomed him very warmly. He's talking to everyone. I think he's very comfortable. As I speak English, I'm trying to help him as best I can, but I think everyone is doing that."