This Saturday, August 2, 2025, the day of the crossroads between July and August, Bison Futé forecasts a black day in the outbound direction. We take a look at the expected traffic situation in France, from August 1 to 4, and suggest routes to avoid traffic jams.
Traffic is going to be busy this weekend in France. This is due to the traditional crossroads between July and August. According to Bison Futé, traffic is likely to be very complicated on all the country's main roads from August 1 to 4, 2025, and more particularly on Saturday August 2, which the traffic forecasting organization has classified as a black day.
Bison Futé therefore recommends that, wherever possible, you postpone your travel on this day, especially if you plan to use the roads in the Rhône Valley and along the Mediterranean, which will be particularly busy in both directions.
We take a look at the traffic that awaits you from August 1 to 4, day by day.
Bison Futé forecasts for August 1 to 4, 2025 :
- OnFriday August 1, 2025, in the outbound direction, traffic is likely to be difficult from early morning until mid-evening, depending on the sector. The main difficulties are expected on roads leading to the Atlantic coast (A11, A10, A63), the Mediterranean coast (A9, A50, A8), the Rhône valley (A7, A43) and through the Massif Central (A71 and A75). In the Île-de-France region, heavy flows are expected at the various toll plazas heading south and west. Departures will be spread over the early morning and into the night from Friday to Saturday. North-South transit to the A10 and A6 motorways will also encounter numerous traffic problems. Long journey times may be recorded on these routes.
- On Friday August 1, 2025, inthe return direction, traffic jams are likely to be observed on the routes from the south-east quarter, mainly on the A9, A7 and A75 freeways and for access to the Mont-Blanc tunnel.
- Saturday August 2, in the outbound direction, is classified as a black day nationwide. Travel is expected to be particularly difficult on France's main roads, from early morning until early evening. Heavy traffic is expected towards the Atlantic coast (A10, A63, A11), the Mediterranean coast (A7, A9, A61) and across the Massif Central (A75, A20). In the Île-de-France region, traffic will remain heavy overnight on part of the motorway network. In the early hours of the morning, traffic is expected to become even more difficult on the A10 and A6 freeways, as well as on the roads that converge on them, notably the A86 and A6B. This situation is likely to persist until mid-morning.
- On Saturday August 2,inbound traffic will be very busy on the A9, A7 and A75 freeways from the Mediterranean coast, and to a lesser extent on the A10, A63 and RN165 motorways from the Atlantic coast. In the Île-de-France region, there will be some return traffic between mid-afternoon and early evening (mainly on the A10 freeway), which may cause occasional traffic problems.
- On Sunday August 3, in the outbound direction, traffic conditions are likely to remain difficult, albeit to a lesser extent. Freeways A10 (between Poitiers and Bordeaux), A7 (between Lyon and Marseille), A9 (between Orange and Narbonne) and A75 (between Clermont-Ferrand and Bézier) will be mainly affected from late morning until late afternoon. In the Île-de-France region, traffic will still be very heavy. Difficulties could arise between early morning and early afternoon, particularly on the A6 and A10 freeways.
- On Sunday August 3, in the return direction, congestion will be localized in Auvergne-Rhône-Alpes (A7, access to the Mont-Blanc tunnel and A75) and on the Mediterranean coast (A9, A54 and A8).
- On Monday August 4, in the outbound direction, there will be heavy traffic on roads in the south-east of France, such as the A7, A8 and A9 freeways and the 85 trunk road.
- On Monday August 4, in the inbound direction, there will be difficulties in the eastern half of France on the A7 (between Marseille and Lyon), A6 (between Lyon and Beaune), A8 and A9 freeways.
Bison Futé's advice for avoiding traffic jams, from August 1 to 4, 2025 :
Friday, August 1, in the direction of departure
- leave or cross the Paris region before 6 a.m,
- avoid the A2 freeway, between Combles and Belgium, from 2pm to 6pm,
- avoid the A11 freeway, between Angers and Nantes, from 8am to 7pm,
- avoid the A10 freeway, between Poitiers and Bordeaux, from 11am to 10pm,
- avoid the A7 freeway, between Lyon and Orange, from 2pm to 6pm, and between Orange and Marseille from 12pm to 6pm,
- avoid the A71 freeway, between Orléans and Bourges, from 10am to 2pm, and between Bourges and Clermont-Ferrand from 11am to 5pm,
- avoid the A43 freeway, between Lyon and Chambéry, from 5pm to 8pm,
- avoid the Mont-Blanc tunnel (N205), between France and Italy, from 9am to 8pm
Friday, August 1, in the inbound direction
- avoid the A9 freeway, between Spain and Orange, from 11am to 8pm,
- avoid the A54 freeway and route nationale 113 between Salon-de-Provence and Nîmes, from 11am to 8pm,
- avoid the A50 freeway between Toulon and Marseille, from 12am to 7pm,
- avoid the A7 freeway, between Marseille and Lyon, from 11am to 8pm,
- avoid the A75 freeway, between Béziers and Clermont-Ferrand, from 10am to 7pm,
- avoid the A46 freeway and route nationale 346 for the eastern Lyon bypass, from 12pm to 6pm,
- avoid the Mont-Blanc tunnel (N205), between Italy and France, from 6am to 9pm
Saturday, August 2, in the direction of departure
- leave or cross the Île-de-France region after 6pm,
- avoid the A11 freeway, between Angers and Nantes, from 12pm to 3pm,
- avoid route nationale 165, between Nantes and Quimper, from 11am to 6pm,
- avoid the A10 freeway, between Paris and Orléans, from 5am to 9am, between Orléans and Poitiers, from 8am to 11am, and between Poitiers and Bordeaux, from 10am to 6pm,
- avoid the A63 freeway, between Bordeaux and Bayonne, from 10am to 2pm,
- avoid the A7 freeway, between Lyon and Orange, from 7am to 4pm and between Orange and Marseille from 10am to 5pm,
- avoid the A9 freeway, between Orange and Montpellier, from 10am to 8pm and between Montpellier and Spain from 9am to 5pm,
- avoid the A75 freeway, between Clermont-Ferrand and Béziers, from 10am to 5pm,
- avoid the A20 freeway, between Brive-la-Gaillarde and Montauban, from 12pm to 2pm,
- avoid the A61 freeway, between Toulouse and Narbonne, from 10am to 4pm,
- avoid the Mont-Blanc tunnel (N205), between France and Italy, from 8am to 4pm
Saturday, August 2, in the return direction
- join or cross the Île-de-France region before 1pm or after 7pm,
- avoid route nationale 165, between Quimper and Nantes, from 11am to 7pm,
- avoid the A63 freeway, between Bayonne and Bordeaux, from 10am to 4pm,
- avoid the A10 freeway, between Bordeaux and Poitiers, from 11am to 6pm,
- avoid the A9 freeway, between Spain and Narbonne, from 1pm to 4pm, between Narbonne and Nîmes, from 12pm to 3pm, and between Nîmes and Orange, from 11am to 1pm,
- avoid the A7 freeway, between Marseille and Orange, from 12pm to 2pm, and between Orange and Lyon, from 11am to 5pm,
- avoid the A75 freeway, between Béziers and Clermont-Ferrand, from 11am to 4pm,
- avoid the Mont-Blanc tunnel (N205), between Italy and France, from 2pm to 7pm
Sunday, August 3, in the direction of departure
- leave or cross the Île-de-France region before 6 a.m. or after 4 p.m,
- avoid the A10 freeway, between Poitiers and Bordeaux, from 11am to 5pm,
- avoid the A63 freeway, between Bordeaux and Bayonne, from 10am to 6pm,
- avoid the A7 freeway, between Lyon and Orange, from 1pm to 5pm and between Orange and Marseille from 11am to 7pm,
- avoid the A9 freeway, between Orange and Narbonne, from 11am to 5pm,
- avoid the A75 freeway, between Clermont-Ferrand and Béziers, from 11am to 6pm,
- avoid the A61 freeway, between Toulouse and Narbonne, from 11am to 4pm,
- avoid the Mont-Blanc tunnel (N205), between France and Italy, from 10am to 4pm
Sunday, August 3, in the return direction
- avoid the A9 freeway, between Spain and Narbonne, from 11am to 6pm, and between Narbonne and Orange, from 12pm to 8pm,
- avoid the A8 freeway, between Italy and Le Luc, from 11am to 2pm,
- avoid the A54 freeway and route nationale 113, between Salon-de-Provence and Nîmes, from 11am to 1pm,
- avoid the A7 freeway, between Marseille and Orange, from 11am to 2pm, and between Orange and Lyon, from 12pm to 4pm,
- avoid the A75 freeway, between Béziers and Clermont-Ferrand, from 10am to 4pm,
- avoid the Mont-Blanc tunnel (N205), between Italy and France and Italy, from 11am to 9pm
Monday, August 4, in the outbound direction
- avoid the A7 freeway, between Lyon and Orange, from 12pm to 6pm and between Orange and Marseille from 1pm to 6pm,
- avoid the A8 freeway, between La Fare-les-Oliviers and Le Luc, from 11am to 6pm,
- avoid the A9 freeway, between Orange and Montpellier, from 9am to 12pm and between Montpellier and Narbonne, from 11am to 2pm and between Narbonne and Spain, from 11am to 4pm,
- avoid the A61 freeway, between Toulouse and Narbonne, from 12pm to 3pm,
- avoid the A46 freeway and route nationale 346 for the eastern Lyon bypass, from 11am to 6pm,
- avoid route nationale 85, between Grenoble and Gap, from 11am to 5pm,
- avoid the Mont-Blanc tunnel (N205), between France and Italy, from 9am to 4pm.
Monday, August 4, in the inbound direction
- avoid the A9 freeway, between Spain and Narbonne, from 11am to 2pm and between Narbonne and Nîmes, from 12pm to 6pm,
- avoid the A57 freeway, between Toulon and Le Luc, from 11am to 5pm,
- avoid the A8 freeway, between Italy and Le Luc, from 3 pm to 9 pm,
- avoid the A7 freeway, between Marseille and Lyon, from 9am to 5pm,
- avoid the A6 freeway, between Lyon and Beaune, from 3 pm to 9 pm.
