The market of Gournay-sur-Marne is held on Wednesdays and Saturdays morning. The city also offers a cheerful Christmas market in December.
The gospel festival of the municipality takes place every year in April with different concerts.
The beautiful Gourn'anciennes propose to admire old cars, as well as animations, in May.
In September, Hiking de la Fête is an event offering a cycling tour around the town.