National Day in Sannois, town of vineyards and windmills of Val-d'Oise
Sannois (95110) is a commune in Val-d'Oise perched on the hillsides between Argenteuil and Enghien-les-Bains. With its approximately 26,000 inhabitants, Sannois is a medium-sized town that benefits from remarkable natural and historical heritage. The town is particularly known for its windmills, several of which have been preserved and restored, and for its municipal vineyard which produces an AOC Île-de-France white wine appreciated by connoisseurs each year.
The windmill hill, overlooking the Argenteuil plain, offers panoramic views of the region and is a popular natural space for walkers. It is from these heights that the July 14th fireworks illuminate the sky above the plain.
The July 14th fireworks in Sannois benefit from an exceptional setting. Launched from the heights of the windmill hill or from the town's green spaces, they are visible from surrounding towns and offer spectators gathered on the lawns a large-scale pyrotechnic show. The view of the Argenteuil plain illuminated by colorful rockets is particularly striking.
The inhabitants of Sannois gather in the green spaces of the hill from the early evening, with picnics and blankets in hand. The atmosphere before the fireworks is that of beautiful summer evenings: lively conversations, children running, the scent of grass and the nearby vineyard.
The municipal vineyard of Sannois is one of the town's most appreciated curiosities. This vineyard, replanted in the 1980s on the former wine-growing hillsides, produces grapes each autumn that are vinified in a cooperative cellar, yielding a light and fruity white wine. The Grape Harvest Festival in October is Sannois's other major festive event, but July 14th, preceding this harvest, already allows visitors to admire the vines in full summer growth.
In some years, activities related to the vineyard may be offered during the July 14th festivities: grape juice tasting for children, exhibition on the wine-growing history of Sannois, walks through the vineyards.
The National Day of Sannois mobilizes many local associations that contribute to the day's entertainment. From the afternoon onwards, sports and cultural activities liven up the town's parks and squares. The torchlight procession winds through the streets of Sannois in a festive and solemn atmosphere. The popular ball, after the fireworks, brings residents together in a friendly and relaxed atmosphere.
The official July 14th ceremony, with the mayor's speech and a wreath-laying at the war memorial, reaffirms Sannois's commitment to republican values and the memory of those who fought for freedom each year.
The National Day celebration in Sannois traditionally takes place on July 13th at Square Jean Mermoz (46 boulevard Charles de Gaulle). The evening takes the form of a large free public dance, animated by a DJ, with on-site catering (food trucks), tables and chairs, and children's entertainment. Free admission. The exact program and date for the 2026 edition had not yet been published by the town hall as of May 30, 2026.
In Sannois, the commemoration of July 14th traditionally takes place the day before, July 13th, in the form of a free public dance at Square Jean Mermoz (46 boulevard Charles de Gaulle). In 2025, the evening started at 6 PM, animated by a DJ with festive rhythms, with food trucks, tables and chairs available, and a carousel for children. Recent editions do not include fireworks in Sannois itself.
The detailed program for the 2026 edition (confirmed date, times, entertainment) has not yet been published by the City as of this verification date (May 30, 2026). This page will be updated as soon as the official program is released.
Source: program of July 14th festivities of the Montmorency Valley (Le Journal de François), 2024 and 2025 editions; official website of the City of Sannois (ville-sannois.fr).
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Square Jean Mermoz
46 boulevard Charles de Gaulle, 95110 Sannois, 95110 Sannois