Extended opening hours will apply to all nine stores including somes stores staying open until 10pm and overnight shopping in Primark, Newtownabbey.
Primark, Newtownabbey will open at 9am on December 11 and stay open right through until closing time on December 12.
All other stores across Northern Ireland will trade until at least 9pm on weekdays until December 23.
Strict social distancing, a limit on the number of customers permited inside a store at the same time and hand santising stations will all be in place.
Customers must also wear a face-covering when inside any of the nine stores.
Primark CEO, Paul Marchant, said: “We are delighted to re-open our stores in Northern Ireland on December 11, with longer shopping hours to give our customers more time to safely do their festive shopping.
“We have everything this season that our customers expect from Primark, including our famous Christmas jumpers, festive pyjamas and much, much more.
“All of our extensive safety measures remain in place to help ensure shopping at Primark is an enjoyable, safe experience for
Store opening times can be found below and online:
The following stores will trade until 9pm: Belfast Castle Street, Belfast Donegall Place, Lisburn and Buttercrane
The following stores will trade until 10pm: Ballymena, Newtownards, Newtownabbey, Londonderry and Omagh.
Overnight trading: Primark Newtownabbey will open at 9am on December 11 and stay open right
through until closing time on December 12.
For more information visit https://www.primark.com