The Colombian, who joined the club on loan from Napoli in January, believes that the style of football in the Premier League is bringing out the best in him after starting the last three games for the Hammers.
"The truth is I feel very happy here in England and at West Ham. I am getting more opportunities and more games so it's going much better now," Armero told the club's website.
"I'd be happy to stay as I like the football here - it's quick, it's lively, it's physical and for a fast player like me it's great.
"As for the future I don't know whether I will stay here in England but we will have to see. I want to do a good job, help my team-mates out and I am grateful to West Ham for the opportunity they have given me."
Armero is expected to be involved when the Hammers face West Bromwich Albion on Saturday afternoon.