Floats, confetti, a funfair and fireworks: the Fête du Pâté à la Carmen returns to Montesson on 19 and 20 September 2026. A popular Yvelines event that preserves a local tradition dating back more than a century and a half.
The Fête de la Musique 2026 remains in Montesson, but the program is adjusted due to the heat. On Saturday, it kicks off at 7 p.m.; Créa’danse is canceled, and Sunday’s concert has been moved.