The man, in his late 30s, was spotted by gardaí before 4am on Friday (22 December) and the lifeboat was quickly launched to their report.
Lifeboat volunteer crew member Frank O’Brien entered the water to lift the casualty into the lifeboat, as he was wedged between a trawler and the quay wall.
When on board, the crew administered casualty care and brought the man back to Wexford lifeboat station, where an ambulance then took him to hospital for further treatment.
The man was said to be “extremely grateful” to the gardaí and lifeboat crew, and said it felt like he had been in the water for several hours.
Wexford RNLI urges people to respect the water and be vigilant when walking near the water's edge. If you see someone in difficulty, ring 999/112 and ask for the coastguard.