Sardinia in September
The secret champion: the sea holds 24 to 26 °C after summer, crowds vanish with the school year and prices drop by a third. The south (Crete, Sicily, Calabria) stays swimmable all month.
Sardinia in September: what does it cost?
The calculator already has this month's dates filled in. It compares flights from your airports, driving and the ferry, and adds the total cost.
The numbers for September
Climate: 8 year averages (Open-Meteo). Flights: cheapest return fare per person found from Prague or Vienna (Aviasales, ~48 h).
How to get there
By air: Olbia in the north, Cagliari in the south, Alghero in the west. A rental car is close to essential. By car: ferry from Livorno (9 h) or Piombino (6 h) to Olbia, roof boxes and bikes welcome on board. An overnight cabin crossing saves a day of holiday.
By plane
Nearest airports: OLB, CAG, AHO. The calculator searches all of them at once, across your whole date window.
By car and ferry
The shortest route is Civitavecchia → Olbia: about 7 h at sea, a car from ~110 € one way.
Frequently asked
How warm is the sea in Sardinia in September?
In September the sea is typically around 24 °C and the air averages 28 °C during the day.
Can you drive to Sardinia?
Yes, with a ferry: the shortest route is Civitavecchia → Olbia, about 7 h at sea and a car from ~110 € one way.