Yvelines: 10 outings to enjoy this weekend of July 4–5, 2026

Published by My de Sortiraparis · Photos by My de Sortiraparis · Updated on July 1, 2026 at 08:57 a.m.
Amid flea markets, free museums and castles to visit, the weekend of July 4–5, 2026 in the Yvelines looks set to be a busy one, despite Meteo-France’s forecast of returning heat. Here are our 10 ideas for outings to enjoy the 78 with family or friends.

Are you based in the Yvelines or looking for a quick escape from the capital without venturing far? This weekend of July 4 and 5, 2026, the 78 region hides a trove of small wonders to explore, from and free museums to castles to visit. After a short lull, the heat returns to Île-de-France according to Météo-France, with highs around 32 to 33°C starting this Saturday, July 4, under a bright sun. Our team signs off on standout outing ideas to pick from right near you.

We either fire up the Navigo pass Navigo or step out for a relaxed outing just a short stroll from home. Between strolls along the Seine, flea markets and garages sales, museums and monuments free to visit on the first Sunday of the month, and castles open for the occasion, this weekend in the 78 offers plenty of excuses to treat yourself. Just keep in mind to stay hydrated and favor cooler outings in the late afternoon.

10 things to do in Yvelines on July 4–5, 2026

Guinguette 1124, la terrasse éphémère au cœur du domaine du château de Saint-Germain-en-Laye (78)Guinguette 1124, la terrasse éphémère au cœur du domaine du château de Saint-Germain-en-Laye (78)Guinguette 1124, la terrasse éphémère au cœur du domaine du château de Saint-Germain-en-Laye (78)Guinguette 1124, la terrasse éphémère au cœur du domaine du château de Saint-Germain-en-Laye (78) Free castles, museums and monuments in Yvelines, Sunday, July 5, 2026, the first Sunday of the month
The first Sunday of the month, many monuments, castles, museums, and historic sites in Yvelines open their doors to visitors for free. But that isn’t the case for everyone, all year round. To help you navigate, here is the list of cultural sites in the 78 to visit this Sunday, July 5, 2026. [Read more]

Brocantes et vide-greniers dans les Yvelines les 4 et 5 juillet 2026 - 78Brocantes et vide-greniers dans les Yvelines les 4 et 5 juillet 2026 - 78Brocantes et vide-greniers dans les Yvelines les 4 et 5 juillet 2026 - 78Brocantes et vide-greniers dans les Yvelines les 4 et 5 juillet 2026 - 78 Flea markets and garage sales in Yvelines on July 4–5, 2026 – 78
Head to the Yvelines (78) this weekend of July 4–5, 2026, where three events await vintage and flea-market enthusiasts, between Rochefort-en-Yvelines, Perdreauville and Follainville-Dennemont. [Read more]

Cern'estival : ce festival gratuit façon Solidays du 78, débarque dans les YvelinesCern'estival : ce festival gratuit façon Solidays du 78, débarque dans les YvelinesCern'estival : ce festival gratuit façon Solidays du 78, débarque dans les YvelinesCern'estival : ce festival gratuit façon Solidays du 78, débarque dans les Yvelines Cern'estival: the free Solidays-style festival from the 78 lands in Yvelines
Le Cern'estival brings its stages to Parc Pelouse de Cernay-la-Ville in Yvelines for its inaugural festival, pairing live concerts with a gourmet market and an eco-friendly ethos. See you on Saturday, July 4, 2026, with free entry. [Read more]

Halloween 2025 : Protocole Z, l'escape game immersif dans la crypte du Château de Thoiry (78)Halloween 2025 : Protocole Z, l'escape game immersif dans la crypte du Château de Thoiry (78)Halloween 2025 : Protocole Z, l'escape game immersif dans la crypte du Château de Thoiry (78)Halloween 2025 : Protocole Z, l'escape game immersif dans la crypte du Château de Thoiry (78) A concert under the stars and a dance performance in front of this château in the Yvelines.
The grounds of the Château de Thoiry in Yvelines are transforming into an open-air music and dance hall for an elegant, festive, starlit evening that celebrates the sweetness of summer, on Saturday, July 4, 2026. [Read more]

Le Château de Rambouillet et sa Bergerie nationale, un domaine d'exception en Ile-de-FranceLe Château de Rambouillet et sa Bergerie nationale, un domaine d'exception en Ile-de-FranceLe Château de Rambouillet et sa Bergerie nationale, un domaine d'exception en Ile-de-FranceLe Château de Rambouillet et sa Bergerie nationale, un domaine d'exception en Ile-de-France Family day out: become apprentice farmers at the Rambouillet National Sheepfold
Every summer, Rambouillet’s National Sheep Farm hosts Apprentice Farmer, a family‑friendly event for families and children who want to discover the daily life of a farm in a playful way. Held during the school holidays, the event invites visitors to take part in a variety of activities around animals, farm trades, and agriculture. [Read more]

Guinguette du dispensaire et Foodtruck des Écuries au parc du Dispensaire de Sartrouville dans les Yvelines - photosGuinguette du dispensaire et Foodtruck des Écuries au parc du Dispensaire de Sartrouville dans les Yvelines - photosGuinguette du dispensaire et Foodtruck des Écuries au parc du Dispensaire de Sartrouville dans les Yvelines - photosGuinguette du dispensaire et Foodtruck des Écuries au parc du Dispensaire de Sartrouville dans les Yvelines - photos A guinguette and a food truck are setting up in this lush Yvelines park for the summer.
The Guinguette du Dispensaire and the Café des Écuries’ food truck are taking over Parc du Dispensaire in Sartrouville (78) from June 3 to September 30, 2026: aperitif boards, Raimo ice creams, waffles, and outdoor drinks are here to welcome you. We went to check it out and here’s the full story. [Read more]

Garden barbecue au Trianon Palace à VersaillesGarden barbecue au Trianon Palace à VersaillesGarden barbecue au Trianon Palace à VersaillesGarden barbecue au Trianon Palace à Versailles Barbecue Fest, a new festival for BBQ enthusiasts in the Yvelines (78)
BBQ fans are set to descend on Chatou, on the Île des Impressionnistes, for the inaugural Barbecue Fest, on July 4 and 5, 2026. [Read more]

Le Domaine de Trianon et Hameau de la ReineLe Domaine de Trianon et Hameau de la ReineLe Domaine de Trianon et Hameau de la ReineLe Domaine de Trianon et Hameau de la Reine A grand historical reenactment at the Palace of Versailles celebrates American independence
The Palace of Versailles marks the 250th anniversary of U.S. independence. To celebrate, experience a grand historical reenactment on July 4th and 5th, 2026, at the Trianon Estate. [Read more]

La Fête des Loges 2017La Fête des Loges 2017La Fête des Loges 2017La Fête des Loges 2017 Fête des Loges 2026: dates, programme and attractions (Yvelines)
The Fête des Loges 2026 returns to the Saint-Germain-en-Laye forest (Yvelines) for its 373rd edition, running from June 26 to August 16, 2026. With more than 200 attractions, a Gourmet Cuisine Alley, and free admission, it’s set to be a highlight of the season. [Read more]

Arboretum de la Vallée-aux-Loups, une balade au milieu des arbres remarquablesArboretum de la Vallée-aux-Loups, une balade au milieu des arbres remarquablesArboretum de la Vallée-aux-Loups, une balade au milieu des arbres remarquablesArboretum de la Vallée-aux-Loups, une balade au milieu des arbres remarquables Open Gardens 2026 in Île-de-France: this summer’s program
Open Gardens 2026 in Île-de-France returns, running June 27 to August 30, 2026, in more than 200 gardens across the Île-de-France region. On the program: concerts, performances, guided tours, workshops and art installations. [Read more]

Good ideas for the future:

Les Vaux de Cernay en Vallée de Chevreuse - Cernay-la-Ville - Petit Moulin Vaux de CernayLes Vaux de Cernay en Vallée de Chevreuse - Cernay-la-Ville - Petit Moulin Vaux de CernayLes Vaux de Cernay en Vallée de Chevreuse - Cernay-la-Ville - Petit Moulin Vaux de CernayLes Vaux de Cernay en Vallée de Chevreuse - Cernay-la-Ville - Petit Moulin Vaux de Cernay Where to swim in Yvelines this summer 2026: beaches and aquatic centers in the 78
Looking for the loveliest beaches and swimming spots in Yvelines? Here are the 78’s top tips to cool off this summer, 2026. [Read more]

Le Chou de Chanorier, le restaurant des Yvelines à Croissy-sur-Seine by Charlie AnneLe Chou de Chanorier, le restaurant des Yvelines à Croissy-sur-Seine by Charlie AnneLe Chou de Chanorier, le restaurant des Yvelines à Croissy-sur-Seine by Charlie AnneLe Chou de Chanorier, le restaurant des Yvelines à Croissy-sur-Seine by Charlie Anne Where to dine in Yvelines? Top restaurant picks in the 78, tried and trusted
There's no shortage of good places to eat in the Yvelines. If you'd like to discover the best restaurants in the 78 department, here we go! [Read more]

Le brunch à volonté exceptionnel de la Maison du Val à Saint-Germain-en-Laye dans les Yvelines - 78  - terrasseLe brunch à volonté exceptionnel de la Maison du Val à Saint-Germain-en-Laye dans les Yvelines - 78  - terrasseLe brunch à volonté exceptionnel de la Maison du Val à Saint-Germain-en-Laye dans les Yvelines - 78  - terrasseLe brunch à volonté exceptionnel de la Maison du Val à Saint-Germain-en-Laye dans les Yvelines - 78  - terrasse Where to stay in Yvelines? Hotels, bed and breakfasts, and campsites in the 78 department.
The Yvelines, with its lush green landscapes and rich heritage, offers the ideal break just a few kilometers from Paris. Whether you're looking for a bucolic setting, a warm atmosphere or immersion in the heart of nature, there are several options available to visitors in search of escape. [Read more]

Jardin Yili, le jardin chinois caché dans les YvelinesJardin Yili, le jardin chinois caché dans les YvelinesJardin Yili, le jardin chinois caché dans les YvelinesJardin Yili, le jardin chinois caché dans les Yvelines Ten offbeat parks and gardens in Yvelines, treasures to discover
What if we set off on a stroll to discover the loveliest original parks and gardens in Yvelines? From hidden, unique, historic spots to outright quirky or simply one-of-a-kind places, the 78 has no shortage of unusual gems for anyone looking to stray off the beaten path. We’re unveiling 10 parks, gardens, and green spaces to explore in the department. [Read more]

Le Brunch à volonté du belvédère au Domaine de la Corniche dans les Yvelines - photos - table en terrasse avec vueLe Brunch à volonté du belvédère au Domaine de la Corniche dans les Yvelines - photos - table en terrasse avec vueLe Brunch à volonté du belvédère au Domaine de la Corniche dans les Yvelines - photos - table en terrasse avec vueLe Brunch à volonté du belvédère au Domaine de la Corniche dans les Yvelines - photos - table en terrasse avec vue Where to have a good brunch in the Yvelines? Our top picks in the 78
Whether you live in the Yvelines or are just passing through, discover our top brunch spots in the 78. [Read more]

Où bruncher à Versailles ? nos bonnes adresses testées et validées dans les YvelinesOù bruncher à Versailles ? nos bonnes adresses testées et validées dans les YvelinesOù bruncher à Versailles ? nos bonnes adresses testées et validées dans les YvelinesOù bruncher à Versailles ? nos bonnes adresses testées et validées dans les Yvelines Where to have a good brunch in Versailles in the Yvelines? Our top picks in the 78
Looking for a good brunch in Versailles? Discover our top picks in the royal city of Yvelines, including artisan coffee shops, all-you-can-eat options, and family-friendly spots! [Read more]

Le Château de Monte-Cristo, l'ancienne demeure d'Alexandre DumasLe Château de Monte-Cristo, l'ancienne demeure d'Alexandre DumasLe Château de Monte-Cristo, l'ancienne demeure d'Alexandre DumasLe Château de Monte-Cristo, l'ancienne demeure d'Alexandre Dumas What to do in Yvelines (78)? Heritage, good addresses and activities, ideas for outings
Want to get to know Paris Region better? This time, we're taking you to the Yvelines to discover its heritage, places to visit, must-do activities and the best deals of the moment. From castles to walks and good addresses, here's what's in store for you in the 78 département. [Read more]

Le Médaillon de Vie Eternelle : l'escape game 100% pirates chez Glorious Escape gameLe Médaillon de Vie Eternelle : l'escape game 100% pirates chez Glorious Escape gameLe Médaillon de Vie Eternelle : l'escape game 100% pirates chez Glorious Escape gameLe Médaillon de Vie Eternelle : l'escape game 100% pirates chez Glorious Escape game Glorious Escape Game in Vélizy, the go-to spot for a fun outing with friends or family in Yvelines
Glorious Escape Game, based in Vélizy-Villacoublay (Yvelines), offers 9 escape rooms: The Emperor's Heritage, Django, Asylum, Lost, The Stone of Anubis, The Haunted House, The Walking Dead, Relics of Death, and Pirate: The Medallion of Eternal Life. [Read more]

Village de Medan dans les Yvelines - château de Medan - glycineVillage de Medan dans les Yvelines - château de Medan - glycineVillage de Medan dans les Yvelines - château de Medan - glycineVillage de Medan dans les Yvelines - château de Medan - glycine The most beautiful villages in the Yvelines, 7 must-see nuggets
Looking for a change of scenery less than an hour from Paris? The Yvelines (78) region is brimming with charming villages full of character. From Rochefort-en-Yvelines to Montfort l'Amaury, discover 7 Yvelines nuggets combining historic heritage and bucolic surroundings, all year round. [Read more]

Heads up, during this heatwave period when events may be canceled, make sure you verify the actual opening times before you head out!

Enjoy your weekend in the Yvelines!

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Practical information

Dates and Opening Time
From July 4, 2026 to July 5, 2026

× Approximate opening times: to confirm opening times, please contact the establishment.

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