The decision itself it not a particular surprise, given Enrique's fractious relationship with the press and some of his players, though the announcement came after a 6-1 win over Sporting Gijon which saw Barca regain the lead at the top of La Liga.
"I need to rest", Luis Enrique told the post-match news conference. That means very little time to rest, very little time to disconnect.
Manchester City manager Guardiola paid tribute to Enrique's three "unbelievable" years in charge. "After this season it will be good for me to get some rest".
"The club will continue to support him, as we've always done because we hope to end the season in the best way possible".
Luis Enrique said he told the club during the pre-season that he was considering not returning after his contracted expired at the end of this season. "He's one of the greatest Coaches in Barca's history", began the President.
However, midfielder Ivan Rakitic said Enrique's decision left the Barca players "open-mouthed".
However, his future was placed in serious doubt after Barca's 4-0 thrashing at the hands of Paris Saint-Germain in the first leg of their Champions League last 16 tie two weeks ago.
Real Madrid thrash Eibar without Bale and Ronaldo
Enrique expressed optimism that Barca can overturn the deficit to PSG.
However, Barcelona and Real Madrid should ultimately have far too much quality for their opponents and, with Sevilla snapping at their heels, should respond like the champions they are - albeit with a scare or two along the way.
"As a Barcelona fan, I'm sad that we'll miss the ideal trainer for Barcelona", Guardiola posted on his official Twitter account".
Luis Enrique won eight titles with Barcelona and still has the chance to win three more before leaving - the Spanish league, the Copa del Rey and the Champions League. But Barcelona measures themselves by their success in Europe's showpiece competition and they've underachieved in the last two seasons.
The Basque minnows held high-flying neighbors Real Sociedad to a 2-2 draw in San Sebastian, seeing them climb to seventh in the table, less than three years on from their first ever promotion to the top flight.
He said he had enjoyed "three unforgettable years" with the Catalan club.
"I will give my full dedication in these three months".