His motivation to climb the landmark of Paris was unclear.
Officials closed the tower and began evacuating visitors after the man had been spotted for the first time.
Pictures and videos of the person who climbed to the 324-meter-high tower ("The Eiffel Tower was closed and evacuated because a person climbs it," said a spokeswoman for the landmark the day before.
Firefighters have contact The Irishman, Claire Murphy, who is vacationing in Paris, told CNN that the closure began at 2:15 pm (8:15 pm ET) and that she was still in the area
Nearly 7 million people The Eiffel Tower, which was completed in 1889 and designed and built by Gustave Eiffel as part of a "World Exhibition" on the occasion of the 100th anniversary of the French Revolution, celebrated last week his 130th birthday.
In 2017, a protective glass wall about 65 millimeters (about 2.5 inches) thick, bullet-proof, was built around the base of the tower.