Late July and nothing booked? A driving holiday can still come together, but August has three traps: traffic peaks, sold-out ferries in the peak week and prices that culminate around Ferragosto. Here is a data-driven guide to steering through it.
When (not) to leave: three weekends to avoid
This year's traffic calendars are out and they are unambiguous:
| Dates | What happens | |---|---| | Fri 31 Jul – Sun 2 Aug | The worst weekend of the summer: Bavaria and Baden-Württemberg start their holidays, and Saturday 1 Aug is a top-level "black day" in France. Expect jams on the A8, A10, Brenner and the French A7. | | Fri 14 Aug – Mon 17 Aug | Ferragosto (15 Aug) plus Croatia's Velika Gospa: peak occupancy in Italy and on the Adriatic, with the Italian return wave starting on Sunday. | | Fri 28 Aug – Sun 30 Aug | The big returns: all of France is "red" and holidays end in most countries. |
The calmest August departures: Tuesday to Thursday of any week, or Sunday 2 Aug, which is surprisingly quiet right after the black Saturday. Good news from the Alps: no truck metering is scheduled on Tyrol's A12 in August (the next slot is 7 September), and the Tauern and Katschberg tunnels have a construction break over the main season.
Ferries: where a car still stands a chance
- Croatia: Jadrolinija's local ferries (Brač, Hvar, Korčula…) don't take advance bookings for a specific sailing. In summer the official advice is to be at the port at least 60 minutes early; on peak weekends the operator adds extra sailings. You will get your car to an island even last minute, just budget for the queue.
- Sardinia: the ships are running, but the peak week is expensive. Per the Assoutenti consumer comparison, a family of four with a car pays about €1,200 return on Livorno–Olbia in the 8–16 Aug week, and up to €1,600 on Civitavecchia–Olbia. Shifting two weeks later cuts the price sharply – run your exact dates through the calculator, it prices live ferries including the car.
- Greece: be realistic here. The Greek shipping minister said ferry occupancy out of Piraeus is heading towards 100% around mid-August. Don't attempt the Greek islands with a car in mid-August without a booking; via Igoumenitsa to the mainland (Lefkada, Parga) things are looser.
Expect heat like never before
This is not a normal August: marine heatwaves hit 98% of the Mediterranean in the first half of the year, Météo-France has confirmed the fourth heatwave of the season from 29 July, and Italian models expect locally over 40 °C in the south and on the islands in early August. Practically: air conditioning is not a luxury this year but a sleep requirement, and the sea will be as warm as it gets. For selected destinations, our sister project in the Horko network can watch the forecast for your exact dates – you'll find the link on destination pages.
Money on the road: vignettes, tolls, refuelling
- Austria: 1-day vignette €9.60, 10-day €12.80 (the last year a paper sticker exists).
- Slovenia: weekly e-vinjeta €16 (double for vehicles over 1.3 m height); new for 2026: the coastal H5 and H6 sections are now vignette-free. The Karavanke tunnel is charged separately.
- Italy: distance-based tolls, on average 1.5% more expensive this year; roughly €9–10 per 100 km.
- Croatia: tolls are 10% higher in season, and the ENC transponder gives a flat 21.74% discount (extended to post-paid users in July).
- Refuelling: per the EU Oil Bulletin, petrol is cheapest in Czechia, Slovenia and Croatia (~€1.60/l); in Italy expect ~€1.85/l and diesel near €2. Rule of thumb: fill up before the border, top up in Slovenia or Croatia, and buy only the bare minimum in Italy.
So when, and where?
The data points to a simple strategy: leave on a weekday between 3 and 13 August, or after 17 August, when both traffic and prices ease – and best of all, the last week of August spilling into September, when the sea is at its warmest and the beaches empty out (we broke down why in our September article). The calculator turns this into exact numbers for your dates, party and route – ferry for the car, fuel and tolls included.