The 'default' limit has now reduced from 80 kilometres an hour to 60 kilometres an hour.
The changes came into effect at midnight last night in an effort to reduce collisions and road fatalities.
Slower speeds are also due to be brought in for built-up areas as well as on national roads later this this year.
People travelling in rural areas from today will see the changes in those speed limits on road signs nationwide.
Local Food & Foraging Crowns Young Wicklow Chef A Winner
Donal Byrne's Wicklow Rabbit Risotto is a celebration of rural living, honest ingredients and flavours of the land.
House In Delgany At The Centre of Burglary & Harassment Charges
Brian McDonagh has previously been charged with the production of a shotgun during a dispute, unlawful possession of a firearm, and the wilful obstruction of a sheriff, at the property.
Wicklow Boy Awarded €45,000 for Injuries Caused by Uninsured Driver
The child was dragged several feet during the incident in 2022.
Wicklow Woman In TG4 Documentary On Embracing Life & Defying Age Stereotypes
When Deirdre Fitzgerald from Bray retired, she wanted to inspire others to have fun.
Wicklow Rents Climb As Market Tightens In Line With Rental Reforms
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