May On 31 May, Barcelona announced the signing of
Sergio Agüero from
Manchester City on a
free transfer.
June On 1 June, Barcelona announced the signing of
Eric García from Manchester City on a free transfer. On 2 June, Barcelona announced the signing of
Emerson Royal from
Real Betis. Barça had informed Betis that they would exercise their option to bring back Emerson after his two-year long loan spell with the
Verdiblancos. On 19 June, Barcelona announced the signing of
Memphis Depay from
Olympique Lyonnais on a free transfer. On 27 June,
OGC Nice activated their option to buy
Jean-Clair Todibo permanently from his loan spell for €8.5 million plus €7 million in variables. On 29 June, Barcelona and
Olympique de Marseille reached an agreement for the transfer of
Konrad de la Fuente for €3 million. Barça will also receive a percentage of any future transfer fee. Barça also terminated the contract of
Matheus Fernandes.
July On 1 July,
Lionel Messi's contract expired amidst negotiations to sign a new contract, effectively making Messi a free agent. On 4 July, Barcelona and
Wolverhampton Wanderers reached an agreement for the loan of
Francisco Trincão for the rest of the season with an option to buy for €29 million. On 6 July, Barcelona and
Leeds United reached an agreement for the transfer of
Junior Firpo for a fee of €15 million. On 7 July,
UD Almería triggered
Sergio Akieme's buy option for €3.5 million, with Barcelona reserving a right to 10% of any future sale and a right to first refusal. On 9 July, Barcelona and
SK Rapid Wien reached an agreement over the
loan of
Yusuf Demir, with Barça receiving an option to buy for €10 million. On 10 July, Barcelona and
Getafe reached an agreement for the transfer of
Carles Aleñá. On 17 July,
Monchu joined
Granada CF on a free deal following the expiration of his contract, with Barça reserving a right to 50% of any future sale, and a right to first refusal with a buyback option.
August Despite reaching an agreement with Messi and having planned to sign a contract on 5 August, the club announced that Messi would not stay at the club due to financial and structural obstacles posed by
La Liga regulations. He subsequently joined
Paris Saint-Germain on 10 August. On 15 August, Barcelona defeated
Real Sociedad 4–2 at home. Goals from
Gerard Piqué,
Sergi Roberto and a brace from
Martin Braithwaite ensured victory in their first
La Liga match of the season. On 21 August, Barcelona drew with
Athletic Bilbao away at
San Mamés in the second match of the season.
Iñigo Martínez scored for Athletic Club, and
Memphis Depay scored his first official goal for Barça to end the match 1–1. On 29 August, Barcelona defeated
Getafe 2–1 at home, thanks to goals from Sergi Roberto and Memphis Depay. On 31 August, Barcelona reached an agreement with
RB Leipzig for the transfer of
Ilaix Moriba for €16 million with €6 million in add-ons; reached an agreement with
Spezia for the loan of
Rey Manaj for a fee of €300,000 with an option to buy for €2.7 million at the end of the season; reached an agreement with
Tottenham Hotspur for the transfer of
Emerson Royal for €25 million; and reached an agreement with
Atlético Madrid for the loan of
Antoine Griezmann for a reported fee of €10 million with a mandatory buy option of €40 million. Barça also announced the signing of
Luuk de Jong from
Sevilla on a season long loan with an option to buy.
September On 2 September, Barcelona and
Beşiktaş reached an agreement for the loan of
Miralem Pjanić for the rest of the season. On 14 September, Barcelona lost 3–0 at home to
Bayern Munich in the first
UEFA Champions League game of the
season.
Thomas Müller and
Robert Lewandowski (brace) scored for the
Bavarians. On 20 September, Barcelona drew 1–1 with
Granada at home. Barça conceded early in the match, but a goal from
Ronald Araújo in the last minute of the game levelled the score. On 23 September, Barcelona drew 0–0 with
Cádiz away from home. On 26 September, Barcelona defeated
Levante 3–0 at home. Memphis,
Luuk de Jong and
Ansu Fati were the goalscorers, with the latter making his return after a 10-month absence due to injury. De Jong also scored his first goal for Barça. On 29 September, Barcelona lost 3–0 against
Benfica away from home on the second matchday of the Champions League.
October On 2 October, Barcelona lost 2–0 against
Atlético Madrid away from home.
Thomas Lemar and former Barça player
Luis Suárez scored the goals. On 14 October, Barcelona and midfielder
Pedri reached an agreement to extend the player's contract for a further four seasons through to 2026 with a release clause of €1 billion. On 17 October, Barcelona defeated
Valencia 3–1 at home. Valencia took the lead early in the match, but goals from Fati, Memphis and
Philippe Coutinho ensured victory for Barça. On 20 October, Barcelona defeated
Dynamo Kyiv 1–0 at home in the Champions league. Piqué scored the only goal in the game. Later that day Barcelona announced that they had reached an agreement with
Ansu Fati to extend the player's contract for a further five seasons through to 2027 with a release clause of €1 billion. On 24 October, Barcelona were defeated in
El Clásico 2–1 at home, with
David Alaba and
Lucas Vázquez scoring for
Real Madrid. Sergio Agüero scored in the last minute for a late consolation. On 27 October, Barcelona were again defeated, this time by
Rayo Vallecano 1–0 away, with
Radamel Falcao scoring the winner in the first half. It was Rayo's first league win over Barça in 19 years. On 28 October, Barcelona announced the dismissal of
Ronald Koeman as the first team coach, ending his spell at the club after 14 months. On 29 October, Barcelona announced the appointment of
Barcelona B head coach
Sergi Barjuán as the
interim manager of the first team. On 30 October, Barcelona drew 1–1 with
Deportivo Alavés at home. Memphis scored first for the
Blaugrana, but Alavés equalised shortly after, courtesy of
Luis Rioja.
November On 2 November, Barcelona defeated Dynamo Kyiv 1–0 away from home in the Champions league. Ansu Fati scored the only goal in the game. On 6 November, Barcelona announced the appointment of
Xavi as the new first team head coach until 2024. Later that day, Barcelona drew 3–3 with
Celta Vigo away from home. Barça had a three-goal lead within the first half with goals from Fati,
Busquets and Memphis, but a spirited performance from Celta levelled the score in the second half with the equalising goal from
Iago Aspas coming in the final minute. On 12 November, Barcelona announced an agreement in principle to sign former right-back
Dani Alves on a free transfer. On 20 November, on Xavi's managerial debut, Barcelona defeated
Espanyol 1–0 at home in the
derbi barceloní. Memphis scored from the penalty spot. On 23 November, Barcelona drew 0–0 with Benfica at home in the Champions League. On 27 November, Barcelona defeated
Villarreal 3–1 away from home.
Frenkie de Jong scored first, but
Samuel Chukwueze equalised for the
Yellow Submarine. Memphis and Coutinho scored late to seal the win for Barça.
December On 4 December, Barcelona lost to Real Betis 1–0 at home.
Juanmi scored for the visitors. On 8 December, Barcelona lost to Bayern 3–0 away from home at an empty
Allianz Arena. Müller,
Leroy Sané and
Jamal Musiala scored for the home side, eliminating Barça from the group stage and making the
Blaugrana play in the
UEFA Europa League for the first time since
2003. On 9 December, Barcelona and Granada reached an agreement for the loan of
Álex Collado until the end of the season. On 12 December, Barcelona drew 2–2 with
Osasuna away from home.
Nico and
Abde scored for Barca. On 15 December, Sergio Agüero announced his retirement in a press conference at the
Camp Nou. On 18 December, Barcelona defeated
Elche 3–2 at home. Goals from
Ferran Jutglà and
Gavi gave an early two goal lead for Barça, But two goals scored by Elche in two minutes made the score level. Nico scored in the late stages of the game to earn victory for Barça. On 21 December, Barcelona drew 1–1 with
Sevilla at the
Ramón Sánchez Pizjuán, with
Papu Gómez opening the account for
Los Rojiblancos and Araújo equalising in the dying moments of the first–half. On 28 December, Barcelona announced the signing of
Ferran Torres, with Torres signing a 5-year contract until 2027, with a buyout clause of €1 billion.
January On 2 January, Barcelona defeated
Real Mallorca 1–0 at the
Visit Mallorca Stadium. Luuk de Jong scored the only goal. On 5 January, Barcelona started their
Copa del Rey campaign with a 2–1 away win against
Linares. On 7 January, Barcelona reached an agreement with
Aston Villa for the loan of Philippe Coutinho until the end of the season. On 8 January, Barcelona drew 1–1 with
Granada away from home. Luuk de Jong took the lead for Barcelona but Granada equalised at the closing stages of the game. On 10 January,
Samuel Umtiti extended his contract until 2026, which allowed Barcelona to register Ferran Torres. On 12 January, the second Clásico of the season was contested, this time at the semi-final stage of the
Supercopa de España. Luuk de Jong and Ansu Fati scored equalisers for Barça, but it was not enough as Madrid won 3–2 after extra time. On 13 January, Barcelona reached an agreement with
Rapid Wien to end the loan of
Yusuf Demir. On 20 January, Barcelona were knocked out of the Copa del Rey round of 16 by Athletic Bilbao 3–2 at San Mamés, with
Iker Muniain's late winner cancelling out Ferran Torres and
Pedri's goals, with the former scoring his first Barça goal. On 23 January, Barcelona defeated Deportivo Alavés 1–0 away, thanks to a late winner from Frenkie de Jong. On 29 January, Barcelona announced the signing of
Adama Traoré on loan from
Wolverhampton Wanderers. On 6 February, Barcelona defeated Atletico Madrid 4–2 at home. Atletico took an early lead but goals from
Jordi Alba, Gavi, Araújo and
Dani Alves provided a convincing victory for Barça. On 13 February, Barcelona drew 2–2 with Espanyol away from home. Pedri scored an early goal to give lead for Barça, but two goals from the home side almost made them win the match before a late goal from Luuk de Jong which earned a point for Barcelona. On 17 February, Barcelona opened their Europa league campaign with a 1–1 draw with
Napoli at home in the first leg of the round of 32. Napoli scored first and Ferran Torres converted a penalty to level the score. On 20 February, Barcelona defeated Valencia 4–1 away from home. A goal from Frenkie de Jong and a hat-trick from Aubameyang gained victory over Los Che. On 24 February, Barcelona defeated Napoli 4–2 away from home in the second leg of the Europa League round of 32. Jordi Alba, Frenkie de Jong, Pique and Aubameyang scored for Barça. On 27 February, Barcelona defeated Athletic Bilbao 4–0 at home. Aubameyang, Dembélé, Luuk de Jong and Memphis Depay scored for Barcelona to secure three points.
March On 6 March, Barcelona defeated Elche 2–1 away from home. Elche scored late in the first half, but goals from Torres and Depay turned the game in favour of Barcelona. On 10 March, Barcelona drew 0–0 with
Galatasaray at home in the first leg of the Europa League round of 16. On 13 March, Barcelona defeated Osasuna 4–0 at home. Ferran Torres scored a brace while Aubameyang and
Riqui Puig added a goal each. On 17 March, Barcelona defeated Galatasaray 2–1 away from home in the second leg of the Europa League round of 16. Galatasaray scored the first goal of the match but goals from Pedri and Aubameyang cancelled out their lead and secured 2–1 aggregate victory for Barça. On 20 March, in the third Clásico of the season, Barcelona defeated Real Madrid 4–0 away from home. A brace from Aubameyang and goals from Araújo and Torres secured a crushing victory at the Bernabeu.
April On 3 April, Barcelona defeated Sevilla 1–0 at home. Pedri scored the only goal of the match. With this win, Barça climes up to second in the league standings. On 7 April, Barcelona drew 1–1 with
Eintracht Frankfurt away from home in the first leg of the Europa League quarter-finals. Ferran Torres scored for Barcelona. On 10 April, Barcelona defeated Levante 3–2 away from home. Aubameyang and Pedri scored for Barça while having conceded two penalties. Luuk de Jong scored a late goal to earn the victory for Barcelona. On 14 April, Barcelona lost to Eintracht Frankfurt 3–2 at home in the second leg of the Europa League quarter-finals. Frankfurt dominated the game having a three-goal lead until the end of the regulation time. Barcelona's goals came in the stoppage time with Busquets scoring and Depay converting a penalty. With an aggregate score of 4–3, Barcelona were eliminated from the Europa League. On 18 April, Barcelona lost to Cádiz 1–0 at home. On 21 April, Barcelona defeated Real Sociedad 1–0 away from home. Aubameyang scored the only goal in the first half of the match. On 24 April, Barcelona lost to Rayo Vallecano 1–0 at home. On 26 April, Barcelona and defender Ronald Araújo reached an agreement to extend the player's contract through to 2026 with a release clause of €1 billion.
May On 1 May, Barcelona defeated Real Mallorca 2–1 at home. Memphis Depay and Sergio Busquets scored for Barça. On 7 May, Barcelona defeated Real Betis 2–1 away from home. Ansu Fati scored while former Barça player
Marc Bartra scored the equaliser for Betis. Jordi Alba scored in the final minutes of the match to earn the victory. On 10 May, Barcelona defeated Celta Vigo 3–1 at home. Memphis scored a goal while Aubameyang added a brace. On 12 May, Aston Villa triggered Philippe Coutinho's option to buy for a fee of €20 million with Barça receiving a 50% sell-on percentage. On 15 May, Barcelona drew 0–0 with Getafe away from home. On 22 May, Barcelona lost to Villarreal 2–0 at home in the last game of the season. Barcelona finished their league campaign in the second position, qualifying for the next season's
Supercopa de España and
UEFA Champions League. ==Players==