Kamara was a transfer target of Norwich City of the English Premier League during the winter 2013 transfer window, following an unsuccessful trial at Stoke City earlier in the off-season. It was announced on 30 January 2013 that Kamara was signed on loan by Norwich for the remainder of the 2012–13 Premier League season. Norwich had the option for a pre-negotiated permanent transfer or to return Kamara to Sporting at the end of the season, in which case Kamara would miss the first 10 matches of the MLS season. As part of the deal, Kamara's contract with Major League Soccer was extended. Norwich City announced on 5 February that Kamara was granted a visa, making him legally eligible to play for the club. He made his league debut for Norwich as an 86th-minute substitute in a 0–0 draw with Fulham four days later. On the next matchday, 23 February, he came on as a 58th-minute substitute, and 19 minutes later, scored his first goal for Norwich, equalising 1–1 against Everton with a powerful header at Carrow Road, in an eventual 2–1 victory. Kamara assisted team-mate Wes Hoolahan in the 1–1 draw against Sunderland on 17 March, as his header past the goalkeeper was deflected into the net by Hoolahan who was standing on the goal-line. Kamara later claimed the only reason he did not claim the goal as his own was that it was St. Patrick's Day, and he and Irishman Hoolahan had an Irish dance celebration planned.