August is the emptiest month of the year on Paris roads: locals leave, traffic drops, and drive times shrink to their annual minimum. But August 2026 flips the usual "just take the RER" advice. RER C is cut inside Paris until August 22, the southern RER B and central RER D until August 16, and the Seine expressway stays pedestrian for Paris Plages until August 30. Here are the exact dates, what runs normally, and the traps that catch visitors.
Why August is the best month to be driven around Paris
Every summer, a large share of Parisians leaves the city, deliveries slow down and rush hours flatten. Congestion tracking by Sytadin, the Île-de-France roads observatory, consistently shows August at the year's low point. For a visitor, that means airport runs at winter speeds, cross-town hops in 15 minutes instead of 40, and a rare chance to see Paris through a car window without sitting in traffic.
It also means a private chauffeur in Paris delivers unusual value this month: fixed prices don't change, but the hours you book stretch further because nothing is stuck.
What closes in August 2026: the exact dates
The real story of summer 2026 is rail engineering work. The regional operators concentrate major projects in July and August, and this year's program is heavy.
| Closure / restriction | 2026 dates | Impact | Workaround |
|---|---|---|---|
| Paris Plages (Right Bank riverside & La Villette) | July 4 → Aug 30 | Georges-Pompidou expressway pedestrian (Tuileries → Pont de Sully) | Upper quays, boulevards |
| RER C inside Paris | July 15 → Aug 22 | Cut between Austerlitz and Versailles / Pontoise | Metro 14, line N, tram T13, road |
| RER B (southern section) | July 25 → Aug 16 | Cut Gare du Nord ↔ Bourg-la-Reine, then ↔ La Croix de Berny | Replacement buses |
| RER B (CDG branch) | July 25 → Aug 16 | Running but reduced: 1 train every 7 min | See airport section |
| RER D through central Paris | July 25 → Aug 16 | Cut Gare du Nord ↔ Gare de Lyon | Metro 5, line 14 |
| Metro line 13 (northern branch) | Until Aug 17 | Cut Saint-Denis – Université ↔ La Fourche | Replacement buses |
| Neighborhood shops | Variable, peaks weeks of Aug 10 & 17 | Independent bakeries, cleaners, bistros | Tourist districts stay open |
Sources: paris.fr (Paris Plages 2026) and Transilien ("Summer 2026 major works").
Good news for travelers: museums, monuments, department stores and restaurants in visitor districts do not close in August. It's their high season. What slows down is everyday Paris: local shops and commuter rail.
What runs normally
The metro runs on its regular timetable, except for the northern branch of line 13 (cut until August 17) and individual stations occasionally closed for works: check the RATP app the day before. Taxis and chauffeured cars operate year-round, and August is their fastest month. Traffic rules don't take holidays either: the low-emission zone still applies, as covered in our guide to Paris ZFE rules and what they mean for visitors. On Sundays and public holidays, the "Paris Respire" scheme pedestrianizes some districts (Marais and Montmartre among them); the day's exact perimeter is published on paris.fr.
An honest note: for a solo hop between two metro stations, the metro still wins on cost and often on time, August or not. A chauffeured car takes the lead when you have luggage, a chain of appointments, a fixed deadline, or an airport at the end of the ride.
The summer trap: getting to and from CDG and Orly
This is where the rail works bite. Until August 16, the RER B airport branch runs at reduced frequency, one train every 7 minutes to CDG, feeding a network missing its central section, so trains run fuller than usual with luggage racks overflowing. For Orly, Navigo pass holders get free Orlyval access during the works, but it remains a multi-leg journey with bags.
For a flight you cannot miss, the August equation is simple: the roads are at their clearest, so a fixed-price airport transfer with meet and greet included runs on its best times of the year. Count €105 to CDG and €95 to Orly with PrivateDrive, flight tracking included. To compare against official taxi flat rates, our breakdown of CDG taxi fares in 2026 covers every surcharge.
The weekends to avoid on the road
August's fluidity has its exceptions, and they sit outside the city: the chassé-croisé, France's great holiday crossover on the motorways. The national traffic agency Bison Futé rated Saturday August 1, 2026 black, the year's single worst day for leaving the Paris region. The late-August return weekends (Saturdays 22 and 29) are expected to be heavily loaded in the return direction, and the August 15 holiday weekend has quirks of its own: we cover them in our guide to August 15 in Paris, closures and empty streets.
The rule of thumb: inside Paris, drive whenever you like; crossing in or out of the region on an August Saturday, travel before 7 AM or after 8 PM, or shift to Sunday morning.
Staying mobile all month: which formula
For a day of meetings, visiting family, or a shopping loop, chauffeur hire by the hour costs €85/h (3-hour minimum), a format that makes particular sense in August, when each leg takes half its usual time. Day trips benefit too: Versailles, Giverny or Champagne all start from a city you exit in minutes rather than an hour.
Book a PrivateDrive chauffeur for your August stay: English-speaking drivers, availability maintained all summer.
FAQ: Paris in August
Is everything closed in Paris in August?
No. Museums, monuments, department stores and restaurants in tourist areas stay open; August is peak season for them. It's neighborhood businesses (independent bakeries, dry cleaners, local bistros) that close in rotation, mostly the weeks of August 10 and 17.
Does the metro run normally in August 2026?
Yes, on its regular timetable, except the northern branch of line 13 (cut until August 17). The disruption is on the RER commuter lines: RER C cut inside Paris until August 22, southern RER B and central RER D until August 16.
Can I take the RER B to CDG in August 2026?
Yes, the CDG branch is not closed, but it runs at reduced frequency (one train every 7 minutes) until August 16, with the central section cut. Allow extra time, or use the road: it's at its clearest of the year.
Is the Seine riverside expressway open to cars?
No: the Georges-Pompidou expressway is pedestrian for Paris Plages from July 4 to August 30, 2026, between the Tuileries tunnel and Pont de Sully. Traffic resumes in early September.
Is traffic really lighter in Paris in August?
Yes, it's the most fluid month of the year inside the city. The exception is the motorways out of the region on crossover Saturdays: August 1, 2026 was rated black by Bison Futé.
When do the RER lines return to normal?
RER B, RER D and metro line 13: August 17. RER C: August 23. Check the Île-de-France Mobilités app the day before you travel; some night works continue into late August.