The singer passed away last month aged 56, after being found responsive at her home in London.
Before travelling to a private funeral in Bray, O'Connor's funeral cortége will pass through the Wicklow town following a private funeral service, where fans will have the chance to say a final goodbye.
Beginning at The Harbour Bar end of the Strand Road, the journey will continue for over 1 kilometre along the road to the opposite end of the Seafront. O'Connor had lived at the Strand Road for over 15 years, and the procession will pass by her former house.
Stating that fans would have "an opportunity to pay their final respects", the late singer's family also added that Sinéad "loved living in Bray and the people in it".
O'Connor's family have also asked fans to gather along the Bray seafront from 10.30am to "say a last goodbye".
In a statement, Gardaí said the following, "It is expected the funeral procession will stop briefly in this area at some stage between these times".
"As there is limited parking on the seafront, An Garda Síochána are advising people to use public transport if possible, as the DART can bring people right to this location", they added.
Road closures will be in place from 11.30am to 12.30pm along the Strand Road and Promenade Area, with other traffic diverted to the Adelaide Road. Further closures may be put in place.
