The festival of the forest village nestled in the hollow of the Montmorency Valley
The Fête de Saint-Leu-la-Forêt is the annual festive gathering for the inhabitants of this charming residential village in the Vallée de Montmorency, in the Val-d'Oise. Organized by the municipality and local associations, this popular celebration draws its uniqueness from the intimate relationship between the town and the Montmorency forest that borders it.
Saint-Leu-la-Forêt is a town of approximately 15,000 inhabitants belonging to the Val Parisis urban community. Its very name evokes the duality between village life and the presence of the forest: "Saint-Leu," from the name of its patron saint, and "la Forêt" (the Forest), in reference to the Montmorency state forest that extends north and west of the town. This 2,600-hectare chestnut forest is the green lung of the village and the natural setting for many festive activities.
The Montmorency state forest, classified as a protected forest by the National Forestry Office, is Saint-Leu-la-Forêt's major natural asset. This chestnut forest, one of the largest deciduous forests in Île-de-France, offers an exceptional natural setting for summer events. Guided hikes in the forest, organized during the festival, allow residents to discover or rediscover this natural heritage and learn more about forest fauna and flora.
Giant picnics under the chestnut trees, treasure hunts for children, and nature outings led by naturalists and foresters enrich Saint-Leu's summer program. These outdoor activities, appreciated by families, demonstrate the close link that unites the inhabitants of Saint-Leu with their forest environment.
The artisan market organized during the summer festival is one of the most popular events for the residents of Saint-Leu-la-Forêt. Set up under the trees of the municipal park or in the town hall square, this market brings together craft creators, local producers, and antique dealers in a friendly and festive atmosphere.
Handcrafted creations—jewelry, ceramics, sculptures, textiles, illuminations—are displayed alongside local products—forest jams, chestnut honey, artisanal oils—to create a high-quality market that attracts residents and visitors from neighboring towns. These artisan markets help promote local crafts and maintain a local economy within the commune.
The Fête de Saint-Leu-la-Forêt offers a program of open-air concerts in the town's green spaces. The Fête de la Musique on June 21st is a particularly festive occasion, with concerts in the park and at the town hall square. The musical programming, ranging from jazz to French chanson, folk, and classical music, reflects the refined and cultured character of a residential town attached to the quality of its cultural life.
Open-air jazz concerts, classical music recitals in the parish church, and chamber music performances in private gardens open to the public enrich Saint-Leu-la-Forêt's summer musical program.
The National Day is celebrated in Saint-Leu-la-Forêt with a festive program that brings families together. A popular ball hosted by an orchestra or DJ and a fireworks display in the municipal park conclude the national festivities in a warm and republican atmosphere. The tradition of the July 14th ball, inherited from the 19th century, is particularly alive in this village where neighborly ties are strong.
Saint-Leu-la-Forêt is a town where village life is particularly vibrant. The sports, cultural, and social associations that animate the town throughout the year play an essential role in organizing the summer festivities. The festival committee, supported by dozens of volunteers, takes charge of the logistical organization of the annual festival, ensuring its popular success.
Neighborhood festivals organized in different sectors of the town—Vieux Bourg, les Ronces, la Gare—allow residents to gather in an intimate and friendly setting, perpetuating the traditions of conviviality that have earned Saint-Leu-la-Forêt a reputation as one of the most pleasant villages to live in in the Val-d'Oise.
The Saint-Leu-la-Forêt Festival 2026 revolves around two major summer events confirmed by the municipality: Festiv'été & Fête de la Musique on Saturday, June 20th at the Aire des Diablots, then the National Day Ball on Monday, July 13th at the Place de la Mairie. Family entertainment, food trucks, open-air concerts, and a popular ball punctuate these free festive days in the heart of the town and on the edge of the Montmorency forest.
The Aire des Diablots transforms into a festive village from 12 PM to midnight to celebrate summer and music. The day opens with a program of family entertainment (climbing cage, giant slide, aerial park, chairlift, instrument creation workshops from recycled materials) and an Early Childhood Forum dedicated to parents of young children. From 5:30 PM, an open stage highlights local and regional musicians until 9 PM. The evening concludes with two concerts: Mystero (folk and Irish music) then Imswan (electro reggae), until midnight. Five food trucks and a refreshment stand are set up on site all day.
The municipality organizes the traditional July 14th ball on the eve of the public holiday, at the Place de la Mairie, from 6:30 PM to midnight. The evening combines entertainment, a guinguette atmosphere, and food trucks in a family-friendly and republican atmosphere. The announced musical program features Pascal de DSO with his dancing quiz, the band No Name for pop-rock covers, then DJ Erwan to close the evening on the dance floor.
A residential commune of 15,000 inhabitants nestled on the edge of the Montmorency national forest (2,600 hectares of chestnut trees, one of the largest deciduous forests in Île-de-France), Saint-Leu-la-Forêt cultivates a tradition of village festivals rooted in its forest identity. The proximity of the forest, the activities of local associations, and the commitment of the festival committee contribute to making the Saint-Loupian summer a highlight of communal life.
Aire des Diablots, from 12 PM to midnight. Free admission.
Place de la Mairie, from 6:30 PM to midnight. Free admission.
No photo yet. Share yours!
5 photos max, 5 MB per photo (JPG, PNG, WebP)
Aidez-nous à garder cette fiche à jour. Toute proposition est relue par notre équipe avant publication.
No rating yet — be the first!
No review yet. Be the first!
Share your experience with the community
Place de la Mairie et Forêt de Montmorency à Saint-Leu-la-Forêt
Place de la Mairie et parc municipal, 95320 Saint-Leu-la-Forêt