The poll, conducted by Ifop for newspaper Le Journal du Dimanche (JDD) showed Macron’s dissatisfaction rating at 57 percent, 14 percentage points worse than Ifop’s last poll in July.
Forty percent expressed satisfaction with the centrist leader - also down 14 points from July, Reuters reported.
Macron, who is midway through a schedule of official visits to various European capitals, has suffered a number of setbacks since being elected, including tough debates in parliament over labor reform, a standoff with the military and cuts to housing assistance.
The Ifop poll showed the cumulative drop in Macron’s popularity ratings since May was bigger than that of previous president Francois Hollande over the same period of his tenure.
The poll also showed a drop in popularity for Prime Minister Edouard Philippe, with 47 percent expressing satisfaction with him - down 9 points from last month.