This is a list of Portuguese winter football transfers for the 2015–16 season. The winter transfer window opened on 1 January 2016 and closed on 31 January 2016. Players could be bought before the transfer window opened, but could not join their new clubs until 1 January. Additionally, players without a club could join at any time and clubs were able to sign a goalkeeper on an emergency loan if they had no registered goalkeeper available. Only moves involving Primeira Liga clubs are listed. This list includes transfers featuring Primeira Liga clubs which completed transfers after the closing of the summer 2015 transfer window due to other domestic leagues having a later closure date to their transfer window.

Date	Name	Moving from	Moving to	Fee
1 September 2015	Zequinha	Unattached	Arouca	Free[1]
1 September 2015	Ola John	Benfica	Reading	Loan[2]
1 September 2015	Sidnei	Benfica	Deportivo La Coruña	Loan[3]
4 September 2015	Nélson Oliveira	Benfica	Nottingham Forest	Loan[4]
14 November 2015	Bruno César	Estoril	Sporting CP	Undisclosed[5]
20 November 2015	Ezequiel Schelotto	Inter Milan	Sporting CP	Undisclosed[6]
17 December 2015	Michael	Fluminense	Estoril Praia	Loan[7]
20 December 2015	Mateus	Primeiro de Agosto	Arouca	Undisclosed[8]
22 December 2015	Luís Gustavo	Rio Ave	Celta Vigo B	Undisclosed[9]
22 December 2015	Stian Ringstad	Lillestrøm	Braga	Undisclosed[10]
27 December 2015	Marvin Zeegelaar	Rio Ave	Sporting CP	€0.4m[11]
29 December 2015	Álex Grimaldo	Barcelona B	Benfica	€1.5m[12]
29 December 2015	Kanu	Vitória de Guimarães	OH Leuven	Undisclosed[13]
31 December 2015	Walter	Porto	Atlético Paranaense	Undisclosed[14]
8 January 2016	Bryan Cristante	Benfica	Palermo	Loan[15]
8 January 2016	Marion	Atlético Mineiro	Estoril Praia	Loan[16]
8 January 2016	Dani Osvaldo	Porto	Boca Juniors	Free[17]
8 January 2016	Damien Plessis	Châteauroux	Marítimo	Undisclosed[18]
8 January 2016	Jorge Rojas	Benfica	Cerro Porteño	Loan[19]
12 January 2016	Ivan Šaponjić	Partizan	Benfica	Undisclosed[20]
14 January 2016	Fábio Espinho	Málaga	Moreirense	Loan[21]
14 January 2016	Suk Hyun-jun	Vitória de Setúbal	Porto	Undisclosed[22]
15 January 2016	Juanto	Llagostera	Belenenses	Free[23]
16 January 2016	Sunday Abalo	Rio Ave	Leixões	Loan[24]
16 January 2016	Rafa	Porto B	Académica de Coimbra	Loan[25]
18 January 2016	Marko Bakić	Fiorentina	Belenenses	Loan[26]
18 January 2016	Rodrigo Pinho	Braga	Nacional	Loan[27]
18 January 2016	Joan Román	Braga	Nacional	Loan[27]
20 January 2016	Lucas Farias	São Paulo	Estoril Praia	Loan[28]
20 January 2016	Erik Moreno	Braga	Tondela	Loan[29]
20 January 2016	Eñaut Zubikarai	Real Sociedad	Tondela	Undisclosed[30]
22 January 2016	Alireza Haghighi	Unattached	Marítimo	Free[31]
22 January 2016	Igor Lichnovsky	Porto	Sporting de Gijón	Loan[32]
25 January 2016	Filip Đuričić	Benfica	Anderlecht	Loan[33]
25 January 2016	Albert Meyong	Kabuscorp	Vitória de Setúbal	Undisclosed[34]
25 January 2016	José Sá	Marítimo	Porto	Undisclosed[35]
25 January 2016	Moussa Marega	Marítimo	Porto	Undisclosed[35]
26 January 2016	Marcelo Boeck	Sporting CP	Chapecoense	Undisclosed[36]
26 January 2016	Josué	Porto	Braga	Loan[37]
27 January 2016	Tomané	Vitória de Guimarães	MSV Duisburg	Undisclosed[38]
28 January 2016	Sebastián Coates	Sunderland	Sporting CP	Loan[39]
28 January 2016	Paolo Hurtado	Reading	Vitória de Guimarães	Loan[40]
28 January 2016	Maciej Makuszewski	Lechia Gdańsk	Vitória de Setúbal	Undisclosed[41]
29 January 2016	João Silva	Paços de Ferreira	Avellino	Undisclosed[42]
30 January 2016	Oriol Rosell	Sporting CP	Vitória de Guimarães	Loan[43]
1 February 2016	Giannelli Imbula	Porto	Stoke City	€24m[44]
1 February 2016	Zakaria Labyad	Sporting CP	Fulham	Loan[45]
1 February 2016	Erik Palmer-Brown	Sporting Kansas City	Porto	Loan[46]
4 February 2016	Kelvin	Porto	São Paulo	Loan[47]
10 February 2016	Raúl Gudiño	Porto	União de Madeira	Loan[48]
14 February 2016	Maicon	Porto	São Paulo	Loan[49]

• ^1 Some players may have been bought after the end of the 2015 summer transfer window in Portugal but before the end of that country's transfer window closed.