2010-11: Adrian Kempe played for Kramfors-Alliansen's U18 team on the east coast of Sweden as a 14-year-old and played for Angermanland in the TV-Pucken tournament for high school players. He scored 1 goal with 7 assists and had 10 penalty minutes in 25 games and scored 1 goal in three playoff contests. Kempe scored 4 goals with 7 assists and had 4 penalty minutes in eight TV-Pucken games.
2011-12: Kempe moved from Kramfors-Alliansen to Djurgarden in Stockholm – skating for the club's U18 and U16 squads. He scored 10 goals with 10 assists in 34 regular season games for Djurgarden's U18 team and was +15 with 24 penalty minutes. In four playoff games he had 2 assists and was +1. Kempe scored 6 goals with 6 assists and was +12 with 6 penalty minutes in seven games with Djurgarden's U16 team; which captured Sweden's championship. Kempe played 11 international contests for Sweden's U16 team and scored 4 goals with 9 assists. In eight TV-Pucken games for Angermanland he scored 11 goals with 7 assists and was +8 with 33 penalty minutes.
2012-13: Kempe joined MODO's U20 team and played for Sweden in the 2013 U17 World Hockey Challenge. In 39 junior games he scored 6 goals with 7 assists and was -7 with 36 penalty minutes. MODO reached the championship game against HV71 and Kempe scored 1 goal and was -2 with 4 penalty minutes in seven playoff games. He scored five goals in five games and had 2 penalty minutes for Sweden at the WHC. Kempe was selected by the OHL's Barrie Colts in the second round (107th overall) in the 2013 CHL Import Draft.
2013-14: Kempe represented Sweden in the 2013 U18 Ivan Hlinka Memorial Tournament and returned to MODO; playing in the SHL as a 17-year-old and splitting time between the men's team and the U20 squad. He scored 2 goals with 1 assist and was -1 with 12 penalty minutes in four games at the Ivan Hlinka tournament.
Kempe is a very good-sized winger with a frame ready for more weight. He already has a season of SHL play behind him, made possible by his ability and willingness to do whatever the coach asked of him, taking on a primarily third- or fourth-line role. Is active in all three zones and doesn’t hesitate to use his body in many capacities. Not shy to throw or take a hit to get a job done. Kempe has a confident mentality and is clearly knowledgeable about what he can do and where he’s going in the next few years. Plays with a mean streak and shows distaste for losing. Gains good speed and has a nice, fluent skating stride. Also moves well laterally. Heads for the net with every opportunity and can be quite vicious in fighting for pucks in and around the goal mouth. When he has the time coming off the wing, he can lay on a heavy, precise shot. Is best when he concentrates on playing his wing in a back-and-forth lane function and being allowed to remain active there. Loves to battle for pucks and often comes out of corners with them in tow. Knows how to put defenders on their heels, thus creating space for his teammates and the creation of good offensive attacks. Has displayed good hands and a good understanding of the game. Is seen as being very coachable.
There’s really no telling what Kempe's offensive upside is, but his game is straight-forward enough that it lacks the flash and dash of a Nylander or Fiala, thus it is debatable just what type of offense he’ll be able to provide at a later stage. While he looks like a fine prospect and potential future NHL forward, there are those who feel his overall upside would look like that of a two-way, third line player with some bite. Still a work in progress in the overall sense of the game and will likely need another two+ seasons before becoming a topic for the NHL despite his early success at the SHL level. Bulking up shouldn’t be a problem, but it is necessary going forward.