With increasing winds through the night, the vessel had broken free from its mooring and some of the jetty was still secured to the boat.
The winds were starting to settle but they were estimated to be Force 6 or 7 when launching from the Lough Erne Yacht Club.
The lifeboat managed to refloat the vessel and brought it into safer water. The hire company then took charge of the cruiser with the lifeboat accompanying them to a sheltered location.
“With challenging conditions this morning the crews training was put into action and brought the two people and vessel to safety,” said Gary Jones, Enniskillen RNLI’s lifeboat operations manager.
Elsewhere, pagers sounded across the Irish Sea at Holyhead RNLI just after midnight on Thursday in the midst of the storm, with reports of an 18-metre yacht with mechanical failure west of the Skerries lighthouse off Anglesey.
At the scene, the lifeboat crew found the 60-tonne vessel, with two on board, had lost all power and was struggling to cope with the weather conditions, including southerly gale-force winds and spring tides.
The lifeboat undertook a tow of the stricken yacht, which was returning from the Isle of Man TT races back to her mooring at Holyhead. Both vessels arrived safely in port at 4.30am.
Speaking on behalf of Holyhead RNLI, press officer Vicki Owens said: “The weather was unseasonably rough, but our dedicated crew left their beds to help someone in trouble.”
The surprise Storm Hector was also responsible for blowing a yacht ashore on the Kerry coast, as previously noted on Afloat.ie.