But while they wanted to "send a signal", he say they did not want to set fire to the place of worship or hurt anyone.
The man's two accomplices, an 18-year-old and a 29-year-old, admitted their parts in the attack as well.
Armed with home-made firebombs, the men approached the synagogue and threw the makeshift weapons on the night of Sunday July 28th.
A security camera at a petrol station captured two of the accused filling bottles with diesel, while a neighbour alerted the police.
Investigators said that the Molotov cocktails were amateurishly put together.
"We threw the bottles, both the others ran away and I stayed," the 24-year-old said.
"Two bottles hit the door and the wall. Three didn't reach the building, we were really drunk."
"Two of the accused are from West Jordan, where nothing happened [last summer]. I believe this is pure anti-Semitism", Leonid Goldberg, President of the Jewish community in Wuppertal, said after sitting through the court hearing.
SEE ALSO: Anti-Semitic attack on U-Bahn