Season Episodes Originally aired First aired Last aired 13 January 12, 2016 (2016 - 01 - 12) April 5, 2016 (2016 - 04 - 05) 20 10 January 2, 2017 (2017 - 01 - 02) March 6, 2017 (2017 - 03 - 06) 10 June 5, 2017 (2017 - 06 - 05) August 14, 2017 (2017 - 08 - 14) 22 10 March 20, 2018 (2018 - 03 - 20) May 15, 2018 (2018 - 05 - 15) 12 2019 (2019) 2019 (2019)
when does the second half of shadowhunters season 3 air
2019 2019 2019 2019