Fireworks and a majorette show await you for Bastille Day 2026 in Osny

The National Day is fast approaching! Since 1789, on July 14, the unity of the nation and the end of the monarchy are celebrated across France. Alongside the famous military parade on the Champs-Élysées, Paris, most cities in France mark the occasion with a traditional fireworks display! And in Osny, a charming town in the Val-d'Oise, the festivities will be in full swing too.

This Monday, July 13, 2026, the celebrations get under way on the Parc de Grouchy lawn starting at 8:30 p.m., for a friendly, family‑friendly and warm gathering. Each year the program offers activities to keep the crowd entertained ahead of the fireworks launched from the pond.

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This will be an opportunity to share a convivial moment in the heart of a historic park, as you’ll be on the grounds of the Château de Grouchy. A beautiful setting to celebrate Bastille Day 2026 in the Île-de-France region. So eager to find out what’s planned this year in this town in Val-d'Oise? Here’s what you need to know.

National Day 2026 program in Osny, Val-d'Oise (95):

8:30 p.m. – The Golden Lilies baton-twirlers take the stage
The Golden Lilies’ baton-twirlers will light up the park with a festive, high-energy performance. Come out in force to cheer them on and share this vibrant moment with them!

11:00 p.m. – Fireworks over the pond
A highlight of the evening, the traditional fireworks will illuminate the Osny night sky from 11 p.m., set against the majestic Parc de Grouchy