The country is under a yellow snow and ice warning until 11 o' clock tonight.
Met Eireann is warning of accumulations of snow in many areas along with icy conditions.
Hazardous driving conditions, travel disruption and poor visibility can also be expected.
Precautionary gritting began across Cork late last night as temperatures were forecast to drop overnight with city and county council engineers monitoring road conditions during the night
The County Council has warned that these weather conditions can be challenging to treat with intermittent rainfall/snow and freezing conditions likely between salting treatments which may result in icy conditions.
The Road Safety Authority is advising all road users to prepare for difficult conditions and reduced visibility.
Motorists are advised to check local traffic and weather conditions before setting out on any journeys.