Snow and sleet today, along with gale force winds, will cause difficult driving conditions and further disrupt ferry services.
The AA has warned motorists to take care today after overnight temperatures of between minus one and plus three degrees Celsius brought ground frost to most areas and some icy patches on roads.
Severe conditions on the Irish Sea forced Stena Line, Swansea Cork Ferries and Irish Ferries to cancel a number of services today and yesterday.
Met Eireann said bitterly cold strong to gale force easterly winds originating in Siberia would cause temperatures to drop to between three and six degrees Celsius today. Eireann. Snow showers were reported by Met Eireann in Cork at around 7p.m. yesterday.
Milder air pushing in behind the sleet and snow would led to rain tonight, the spokeswoman said. Motorists were being warned of the risk of high winds and icy patches in the morning. A spokesman for the AA said motorists should be aware of wind-blown debris on secondary routes and cross-winds on main roads and exposed stretches of motorway. Stena Line has cancelled its 4.10 a.m. sailing from Holyhead to Dun Laoghaire and its 6.40 a.m. sailing from Dun Laoghaire to Holyhead today. A company spokesman said last night that there were doubts about whether today's 9 a.m. sailing from Rosslare to Fishguard would go ahead.
All sailings between the two ports were cancelled yesterday. For further information call; 01 204 7777 or 053 331155.
Last night's Irish Ferries sailings from Rosslare to Pembroke and Dublin to Holyhead were also cancelled. Intending passengers have been asked to contact the company on: 053 33158 and 01 855 2296.
Swansea Cork Ferries cancelled today's 9 p.m. sailing from Cork and last night's 9 p.m. sailing from Swansea. For further information contact: 021 271166.