Merrion Strand in Dublin will be the first beach in the country shut to swimmers under water quality law.
It's after a new bathing water report from the Environmental Protection Agency found it to be of poor standard for the fifth successive year.
The ban will take effect from June 1st, with signs set to be put up warning people to keep out of the water.
In total, 147 water bodies were assessed in the report, with 140 meeting the minimum required standard.
Local TD Helps Gardaí To Remove Knife From A Distressed Man's Possession Near Leinster House
Wicklow Wexford Fine Gael TD steps in help dislodge a knife from the possession of a man who appeared distressed on Kildare street in Dublin this week
Fire Crews Successfully Battle Major Gorse Fire In Glencree National Park Overnight
Garda Renew Appeal For Info On Paul 'Frank' Byrne Found Murdered In Blessington
Nearly 1,000 Wicklow Children in Oversized Primary School Classes, TD Reveals
Malcolm Byrne calls for urgent teacher recruitment as figures show 984 pupils in classes of 30 or more across the county
Uisce Éireann Warning As Six-Week Hosepipe Ban Takes In Stretches Along The N11 In Wicklow
Sunny intervals
High: 22°C | Low: 13°C
Sunny intervals
High: 22°C | Low: 13°C
Sunny intervals
High: 24°C | Low: 10°C
Sunny intervals
High: 27°C | Low: 9°C
Sunny intervals
High: 28°C | Low: 11°C
