The Atlantic 85 inshore lifeboat Louis Simson launched shortly before 1am to the location given by the two women and one man south of Balbriggan Harbour.
Upon the lifeboat’s arrival, the trio made their way onto a rocky outcrop to stay out of the water while the RNLI volunteers determined the safest approach, illuminating the area by flare.
All three were then assisted into the lifeboat, with no first aid required.
Speaking about the callout, press officer Gerry Canning said: “Our volunteer crew remain on call 24/7 throughout the coronavirus pandemic, and they showed again tonight that they are always ready to drop whatever they are doing and respond to any call for help.”
The RNLI and Irish Coast Guard recently renewed their call for people not to use the sea for exercise or recreation as Ireland moves towards the first phase of relaxing movement restrictions amid the coronavirus pandemic.