Most Bus Éireann services are operating as normal, although there are some delays and diversions in worst-affected areas due to icy conditions.
Other public transport services are operating full schedules where possible, although delays are likely.
In particular this morning, there are some cancellations and delays to services in Louth and Meath as well as the Balbriggan town service in north county Dublin.
Dublin Bus it is operating a full service, although there are a number of curtailments, while the Luas Red Line is operating a full service between Tallaght and the Point, although the Connolly stop is closed.
The Luas Green Line is running between St Stephens Green and Sandyford, with a bus service between Sandyford and Brides Glen.
Irish Rail is not reporting any problems so far this morning.
Intending public transport passengers are asked to check the company's website, or transport.ie before heading out.
There are no reports of weather-related problems at the country's airports this morning.