Seriate to Grosseto trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Seriate and arrive at Grosseto every about 2 hours on average. If travelling with Trenitalia, you need to know the Seriate to Grosseto train schedule: the first train leaves at 07:08, while the last ride is at 18:49. A Seriate to Grosseto train cost about 35.2 €. But how long is the train ride from Seriate to Grosseto? Your journey takes about 8 hours on average.