Anyone over the age of 12 can get a first or second dose of a Pfizer vaccine without an appointment at the clinics.
Vaccines will be available at Páirc Uí Chaoimh Thursday from 4:30pm to 7pm and Friday from 5pm to 8pm.
The City Hall centre will be open Saturday and Sunday from 10am to 2pm.
People are being asked to check their eligibility on hse.ie and to bring all relevant documentation with them to the centres.
