Grumo Nevano to Trieste 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 Frattamaggiore-Grumo and arrive at Trieste Centrale every about 1 hour on average. If travelling with Trenitalia, you need to know the Grumo Nevano to Trieste train schedule: the first train leaves at 04:19, while the last ride is at 20:07. A Grumo Nevano to Trieste train cost about 92.7 €. But how long is the train ride from Grumo Nevano to Trieste? Your journey takes about 10 hours on average.